SAINT THOMAS AQUINAS MEETS CHAOS THEORY
A paper by Frater Choronzon
first presented to Philos-o-Forum at Eccleston House
on Monday 8th July 1991
The title of this paper owes a debt of inspiration to Jim
Henson's "Muppet Show". Fans with long memories may recall the
dauntless Gonzo attempting to play Franz Lizst's sensitive piece 'Liebestraum'
on a grand piano while simultaneously fighting a rapier duel with a giant
crab which stochastically manifests to disrupt the performance. That sketch
was titled 'Classical Music Meets Seafood'; in this adaptation Aquinas
may represent the faltering classical rendition while the inevitabilities
of Chaos play the role of the maurauding crustacean. 'Liebestraum' has
never been the same again - any time one hears or even thinks of the piece,
the image of Gonzo in mortal combat with a piano sized crab takes control.
On that surreal note I will proceed to some introductory background of
the protagonists in the philosophical confrontation which is the main event
of the evening.
THOMAS AQUINAS
Born late in 1224 or early in 1225, Thomas was the
seventh and youngest son of Landulfo, Count of Aquino (near Naples), and
the Countess Teodora Carracciolo, who was of Norman descent. The family
was heavily involved in a squabble between the Holy Roman Emperor Frederick
II and the Papacy, and in 1229 young Thomas' father and his elder brothers
were involved in the plunder of the papal stronghold at Monte Cassino.
In the peace settlement the following year the youngster was effectively
offered as a hostage to the Abbey there, and at five years old Thomas found
himself compulsorily introduced to the delights of a mediaeval clerical
education.
Throughout Western Europe the church had effectively established an intellectual
and academic monopoly which had been in place since Augustine's time some
eight centuries earlier. Thomas was released from Monte Cassino after another
attack by the Imperial Army in 1239, and continued his education at the
University of Naples. In 1244, against the wishes of his family, he joined
the Dominicans and set off for Paris to study Theology. His father, Landulfo,
had died a short time previously, but his mother and older brothers felt
so strongly about his vocation that they actually seized him and held him
prisoner for a year. The Dominicans petitioned both the Pope and the Emperor,
and eventually the family became convinced that nothing could shake the
young man's own determination; they relented, and Thomas Aquinas took up
his place at the Dominican convent in Paris as a pupil of Albertus Magnus.
The affairs of Christendom were in some disarray. Emperor Frederick was
encommunicated twice, first for being insufficiently zealous in pursuing
a crusade (the 6th), and then again some years later for joking that not
only Moses and Christ, but also Muhammad, were imposters who had themselves
been "hoodwinked". Frederick retaliated for the second excommunication
by wrecking a Genoese fleet and capturing over 100 Cardinals and Bishops
on board who were in passage to a Synod at Rome. Matters were only defused
by the timely death of Pope Gregory IX and the serious distraction of an
invasion of Europe by the Mongols. The Saracens were starting to get the
upper hand in the Middle East, perhaps assisted by covert connivance between
the Knights Templar and the Assassins (who was "hoodwinking"
who one wonders).
Nor were Islam's assaults on the Christian position confined to the battlefield. While Rome had been doing everything it could to suppress and obliterate the ancient philosophies of the pagan era, the works of Aristotle in particular had gained some currency among the sages of the Arab world. Aristotelian rationalism had been applied, specifically by Averroes, in providing an intellectual basis for Islam, and Christianity found itself being undermined within its own academic institutions which were becoming increasingly secular, where not downright heretical.
The fightback was spearheaded by Thomas Aquinas who translated Aristotle into Latin and set about the restatement of Christian doctrine which was to become enshrined as the orthodox Roman position throughout the subsequent centuries of Dominican led Inquisition, and of which the central arguments provide the intellectual basis for much of Christian doctrine to this day. Aquinas was canonised in 1323, some 50 years after his death, and, although Protestant denominations may reject much of the doctrine he expounded, they are nontheless happy to make use of some of his intellectual tricks in constructing their own versions of the "irrefutable hypothesis" of Christianity.
It should be said that, as theological treatises go, the 'Summa Theologica' of Aquinas is well structured and clearly set out, and, although it is probably longer than the Bible, in my perception it makes much easier reading than, say, the rambling prose of Saint Augustine. The logical presentation, though, throws up an inherent weakness in the argument to the extent that the whole thesis seems to rest on a few crucial feats of intellectual gymnastics in the opening pages.
In the first place, in establishing some need for "knowledge revealed by God" over and above what may be derived from philosophical reasoning, Aquinas argues that "it was necessary for the salvation of man that certain truths which exceed human reason should be made known to him by divine revelation". Since "salvation", in the sense intended by Aquinas, is a concept which is only significantly meaningful within Christian (or related) paradigm(s), he seems to be assuming the validity of key elements within his paradigm before establishing that paradigm empirically, which is what he claims (in so many words) to be setting out to do.
The next crucial element in the thesis comes in 'Article 5' where Aquinas asks "Whether Sacred Doctrine Is Nobler Than Other Sciences?" He concludes that it is "because other sciences derive their certitude from the natural light of human reason, which can err, while this [sacred doctrine] derives its certitude from the light of divine knowledge, which cannot be deceived". The implication is one of reason being subordinate to some baldly stated concept of divine infallibility.
In 'Article 8', where Aquinas appeals to "faith" in support of the above assertion, we find the following remarkable passage:
"..... Sacred Scripture, since it has no science
above itself, can dispute with one who denies its principles only if the
opponent admits some at least of the truths obtained through divine revelation.
Thus we can argue with heretics from texts in Holy Writ, and against those
who deny one article of faith we can argue from another. But if our opponent
believes nothing of divine revelation, there is no longer any means of
proving the articles of faith by reasoning, but only by arguing his objections
- if he has any - against faith. Since faith rests on infallible truth,
and since the contrary of a truth can never be demonstrated, it is clear
that proofs brought against faith cannot be demonstrations, but are arguments
that can be answered."
By this means Aquinas seeks to provide a secure basis from
which the rest of Christian doctrine can be expounded. It is perhaps worth
noting that in so doing he also provides the principal philosophical basis
from which any purportedly "infallible" revealed scripture can
be presented. The argument seems to be capable of application as much to
the Christian Gospel as to the Torah, the Qu'ran, the Book of Mormon, and
even to Aleister Crowley's 'Liber Al' (the Book of the Law). The task for
the proponent of whatever system of "faith" is being proposed
remains simply to establish that the system which they are putting forward
is itself that infallible ultimate truth which by definition defies contradiction.
The other protagonist in this evening's philosophical contest, Chaos Theory,
takes issue with Thomas Aquinas' position at this fundamental level.
CHAOS THEORY
The philosophical constructs of Chaos Theory are of
comparatively recent provenance, albeit that a traditional aphorism of
the Assassins of Alamut and of the Illuminati of Bavaria, "Nothing
is True: Everything is Permitted", has gained new currency in the
modern paradigm.
Personally I prefer the paraphrase "There can be no Ultimate Truth
: Everything is Permissible", and I would interpose the statement
"We exist in a Stochastic Universe" to present a succinct encapsulation
of the fundamental principles of Chaos Theory.
In my earlier expositions on the subject ('Liber Cyber') I have presented
the statement "There can be no Ultimate Truth" as a Philosophical
Axiom, but in the present context, taking issue with no less an eminence
than Aquinas, a more rigorous analysis is called for.
One of the reasons I dislike the Illuminati formula "Nothing is True"
is because that statement, to an Information Technologist, has no particular
profundity - it is simply the corollary of another statement "+5 volts
is False". The two statements together defining an information processing
environment termed Negative Logic. For Positive Logic the analogous statements
are "Nothing is False" and "+5 volts is True". Truth
and Falsehood are defined simply in terms of electrical voltage levels
at semi-conductor outputs, or in the polarity of memory storage elements,
and whether a given information processing device uses positive or negative
logic is entirely a function of the way in which the device is wired. The
logic polarity is transparent to a user of the device; it will give the
same answers provided that polarity is consistent within the device, though
the correctness of those answers is strictly independent of 'truth' and
'falsehood' as applied within the hard wired logic, and more a function
of the validity of the input data and an absence of errors in the instruction
path followed in processing that data.
Thus it can be argued at the quantum information level
of binary '1's and '0's that "there can be no Ultimate Truth",
just as "there can be no Ultimate Falsehood", the crucial factors
in getting the right answers in the real world are logical consistency,
valid input data, and bug-free software. There is a school of thought which
holds that in anything but the most trivially simple systems, completely
bug-free software may be an unattainable ideal, and therefore it may also
be that "There can be no Ultimate Correctness" of answers under
all circumstances. On that basis, the best that can be said of any system
attempting to model reality, or some subset thereof, is "It appears
to give correct answers most of the time".
For many centuries rational and irrational philosophers have turned to
mathematics as a tool for modelling and making predictions not only about
the real world but also concerning the abstract realms of the imaginary
or unreal world. The reason being that mathematics appeared in many cases
to give the correct answers most of the time, and moreover, at the most
trivial level there were a number of absolute truisms or 'axioms' which
could be simply stated, and then used as a basis for the logical deduction
and induction, or 'proof', of more complex statements or 'propositions'.
When such propositions or 'theorems' have been proved with reference to
the accepted axioms, it is often found that the mathematical relationships
established have some analogue in the behaviour of objective reality.
Until the present century it was generally supposed by mathematicians that all conceivable propositions about the relationships between numbers or other mathematical entities might ultimately be proved to be either True or False, even if, in some cases, the procedure for actually accomplishing the proof or disproof might be difficult in the extreme. For centuries there had been problems with whole number solutions for Diophantine Equations, and the generalisation of those problems in the 'Last Theorem' of Pierre de Fermat, but it was generally felt that someone would come up with a proof or disproof of these propositions sooner or later.
During the first decade of this century the philosopher/mathematicians Bertrand Russell and Alfred North Whitehead embarked on a systematic exercise to codify the whole body of mathmatical knowledge, showing that everything could be deduced from the most basic logical principles. The three volumes of their 'Principia Mathematica' were published between 1910 and 1913, and were profoundly influential, even though the authors were forced to admit that their own ultimate objective had not been achieved, in that propositions like Fermat's Last Theorem still defied proof and disproof alike.
The Austrian mathematician Kurt Gödel took up this issue and generalised it, eventually in 1940 publishing his own theorems which proved rigorously that there would always be propositions which could neither be proved or disproved. It is unsatisfactory in this context simply to state Gödel's conclusion, and although the tortuous logic of the full proof is usually consigned to the more abstruse options available in an honours level university maths course, I shall nontheless now attempt a comprehensible rendition because of the importance of that conclusion to a wider understanding of Chaos Theory.
A PROOF OF GÖDEL'S THEOREM
Gödel's Theorem is a theorem about theorems - a 'meta-theorem'
if you like. It is derived in a mathematical language or notation system
known as 'Typographical Number Theory', or TNT for short. In TNT mathematical
symbols representing theorems (and non-theorems) are manipulated using
the procedures, transformations and rules of 'Propositional Calculus',
which also provides a means of determining the relationships between theorems
in TNT.
Like a computer programming language, TNT has a restricted syntax, which
means that mathematical statements have to be expressed in the most elementary
way before they can be rendered into TNT. As an example, one might wish
in TNT to make the statement "7 is not a square number". The
rules require that this sentence should be restated thus. "There does
not exist any whole number 'b', greater than 1, such that 'b' times 'b'
equals 7". The meaning is identical and moreover the concept of a
square number is defined quite concisely. In the shorthand notation of
TNT the sentence is written thus:
~Eb: (b.b) SSSSSSS0 (1)
The notation decodes as follows:-
The 'Tilde' ~ denotes negation, like a NOT gate in a wiring
diagram;
The 'Upper Case E' is an 'assertion of existence' quantifier;
The 'Colon' means 'such that';
'b' is a 'free variable', like 'x' or 'y' in a normal equation;
The 'Full Stop' (or 'period') indicates multiplication.
The 'Equals Sign' has its usual meaning.
The 'S' means 'the Successor of' or 'the next natural counting number up
from'
'Zero' has its usual meaning.
In the notation, S0 means "the natural counting number which is the successor of 0", in ordinary notation '1'.
SS0 is "the natural counting number which is the
successor of SO", commonly written as 2. Thus SSSSSSS0 represents
7. All definite numerical values are written in this way in TNT.
If something can be expressed as a "well-formed" statement in
TNT, then it is a rigorously provable theorem by definition, and, usefully,
there are a number of rules to test for "well-formedness". These
need not concern us here, and they are set out in any relevant text-book.
What Gödel is seeking to do is to derive a "well-formed"
TNT statement which, when deciphered, turns out not to be a valid theorem
in TNT; and to see how he does this it is necessary to introduce the property
of self-reference, and a manipulation process known as 'Arithmoquining'.
To introduce self-reference, Gödel uses the concept of a 'Proof-Pair'
and this involves effectively stepping out of the TNT paradigm and then
back into it again. This is done using a procedure a bit like Gematria,
known as Gödel numbering. Each typographical symbol of TNT is assigned
an arbitrary three digit numerical value, known as a 'Codon'. For example,
0 is 666, 5 is 123, the sign '-' is 111, and so forth (see Appendix). These
are strung together so, for example, the the TNT statement 0 - 0 can be
represented by the numerical value 666,111,666.
Entire proofs in TNT can be written out in this way, with
a special Gödel gematria codon, 611, indicating a new line. If an
entire proof is transposed in this way, then the Gödel number pertaining
to the last line represents the final outcome of the proof, usually denoted
in TNT as a free variable, say, b' (referred to as "b-prime"),
while the huge number corresponding to the entire working of the proof
(complete with new line symbols) is denoted as the corresponding free variable
b.
The last line of the proof is a TNT theorem, and its Gödel gematria
number may be referred to as a 'TNT-Theorem-Number'. Thus the proof-pair
concept can be stated as follows: "There exists a Gödel Number
b such that b and the Gödel Number of its last line, b', form a TNT-PROOF-PAIR".
In the TNT notation this is written.
Eb: TNT-PROOF-PAIR { b, b' } (2)
This may also, by definition of the Proof-Pair property,
be restated as "b' is a TNT-Theorem-Number".
Now to deal with 'Arithmoquining'. This is a numerical process deriving
from a verbal self-reference technique known as 'quining' in honour of
Willard van Orman Quine, the American philosopher who developed it (born
1908, and still alive, I think). An example of a quined sentence might
be: {"Is the name of a Band not an Album" is the name of a Band
not an Album.} Self-reference is achieved by preceding a sentence with
its own quotation.
In Arithmoquining the same sort of effect is achieved numerically by quoting
a Gödel Number for an entire expression as a substitution for a free
variable in the rendition of a TNT statement. Thus, if we have a TNT statement:
~b=SO where b is a free variable, by Gödel's gematria it has the number
223,262,111,123,666. On arithmoquining, the number representing the whole
TNT statement is substituted for the free variable b, giving: ~223,262,111,123,666
= SO which can be rewritten in TNT notation as:
~SSSSSSS..............SSSSSS0 = S0 (3)
| |
223,262,111,123,666 S's
Although a bit nonsensical, this end product is also a True
statement in the strict logical sense.
Of course the TNT expression at (3) above can itself be transcribed by
the now familiar gematria process into a Gödel Number:
223,123,123,123,123, .............. 123,123,123,666,111,123,666 (4)
| |
223,262,111,123,666 copies of 123
This humungously large number, let's call it b'', is said
to be the 'Arithmoquinification' of b, and the whole process can be stated
in TNT notation as
ARITHMOQUINE { b'', b } (5)
To achieve his objective, and to make the principle stick
on meta-levels of 'theorems about theorems about theorems about ....',
(imparting, incidentally, something akin to fractal self-replication permeating
an infinity of theorem levels), Gödel seeks to arithmoquine an expression
which itself makes some statement about arithmoquining. Eventually he hit
on the following formula, which we'll call "G's Fairy-God-Mother".
~Eb: Eb': ( TNT-PROOF-PAIR { b, b' } & ARITHMOQUINE { b", b'} ) (6).
This means: There do not exist numbers b and b' such that
(1) b and b' form a TNT-Proof-Pair AND (2) b" is the Arithmoquinification
of b'.
This Fairy-God-Mother statement, let's call it 'f', can of course be transposed
into a huge number by Gödel's gematria:
f = 223,333,262,636,... etc ....etc ...,213 (7)
Now the whole thing is arithmoquined by substituting the
huge number representing 'f' back into the Fairy-God-Mother in the place
of the only free variable b'' (b and b' are the subjects of the initial
'assertions of existence', and as such are not considered 'free' in the
context).
The result, in TNT notation, looks like this:
~Eb: Eb': (TNT-PROOF-PAIR {b, b'} & ARITHMOCUINE {SSSS...SSSO, b'}) (8)
| |
f S's
This expression, which we will call 'G', is sometimes
referred to by irreverent mathematicians as Gödel's G-String.
There are two things to say about it. Firstly, G's own Gödel Number
is the arithmoquinification of the Fairy-God-Mother expression. Secondly,
G has an interpretation which, in a literal translation, runs as follows:
"There do NOT exist numbers b and b' such that BOTH (1) they form
a TNT-Proof-Pair AND (2) b' is the arithmoquinification of the Fairy-God-Mother".
What can be made of this? We know that there is a number b' which is the
arithmoquinification of the Fairy-God-Mother, so the second half of G checks
out OK, allowing us to restate G as follows: "There is no number b
that forms a TNT-Proof-Pair with the arithmoquinification of the Fairy-God-Mother".
This is the same as saying "The statement whose Gödel Number
is the arithmoquinification of the Fairy-God-Mother is not a theorem of
TNT"; but "the statement whose Gödel Number is the arithmoquinification
of the Fairy-God-Mother" is none other than G itself, so the ultimate
translation becomes:
"G is not a theorem of TNT".
So, having been constructed as a "well-formed"
TNT statement, in the final analysis G says "I am not a theorem of
TNT". It is effectively a mathematical TRUTH asserting its own FALSITY.
A sublime contradiction at the meta-level of 'theorems about theorems about
theorems about...'.
Now let's consider ~G, the negation of G.
Since G was constructed as a "well-formed" statement
of TNT, its negation, by definition, cannot be "well-formed",
yet the interpretation of ~G is going to be the negation of the interpretation
of G. That is: "I am a theorem of TNT".
So what we wind up with is a valid theorem which states that it is invalid;
and its negation, an expression without validity in a strict formal sense,
making the assertion that it is a valid theorem. What we have is an undecidable
proposition - effectively a 'hole' in the system, or, since we are dealing
with the natural counting numbers, a hole in the reality of the universe.
Clearly, with a hole in the reality of the universe revealing an ultimate
undecidable proposition, it follows that "there can be no ultimate
truth". QED.
INTERPRETING GÖDEL'S THEOREM IN REALITY
Because Gödel's Theorem is a multi-level meta-theorem
about theorems, there is a whole class, an infinity even, of mathematically
valid propositions which will defy both proof and disproof.
Such propositions permeate tke structure of the Cosmos. They describe the
ultimate uncertainty about the expansion of the universe itself, which
is perceived to be expanding at exactly the critical rate where is undecidable
whether the expansion will continue for ever, or whether everything will
eventually start to contract again under the influence of gravity, terminating
in a 'Big Crunch'.
Similar propositions apply to the uncertainties in the observable behaviour
of sub-atomic particles which are described by Werner Heisenberg in his
statement of the 'Uncertainty Principle'.
Yet other Gödelian propositions may model the uncertainties attending
supposedly causal processes on a terrestrial or human scale. Although a
butterfly flapping its wings on a Carribean island may initiate the process
which causes a hurricane in London, as determined by Chaos Maths, it is
undecidable which particular butterfly was responsible.
Alternatively, we can conduct a magical operation with the intent of abolishing
an unpopular tax, but, when that very tax is then abolished within the
specified time period, it is nontheless undecidable whether the magic caused
the result, or whether it would have happened anyway.
The class of mathematical expressions which satisfy the criteria of Gödel's
G-String are intermingled at all levels with the processes of the real
world. In lyrical terms, they seem to open a window from reality onto some
void of undecidability through which Chaos can become manifest. More than
anything, this mathematics confirms to us rigorously that "there can
be no ultimate truth". Not on a sub-atomic scale, not on a human scale,
not on a cosmic scale, and not in the domain of mathematical theorems expressing
philosophical concepts.
If "there can be no ultimate truth", the concept of "infallibility"
becomes meaningless, and to maintain a belief system based on such a concept
is no different to maintaining a belief that the Sun goes round the Earth,
even after Copernicus, Kepler, Galileo, Giordano Bruno and Newton had argued
and proved that the exact opposite was the case.
CONCLUSION
I have devoted almost half of this paper to an exposition
of Gödel's Proof, for the simple reason that it provides a rigorous
underpinning for the philosophical position of Chaos Theory. In so doing
it raises a challenge, not only to the philosophical and doctrinal basis
of Christianity as set out by Aquinas, but also, by implication, to every
other religion or philosophy which depends for its authority on the purported
infallibility of some individual and/or of some text bearing the description
of Holy Writ.
In that sense it is strange to find Aquinas in the position of presenting
the case, not only for all denominations of Christianity, but also for
Islam, for Judaism, for Crowley's Thelema and perhaps also for the discredited
mechanical models of deterministic science. All of these absolutist belief
systems are equally challenged by Gödel's Proof.
In my view, the only cogent response left to the protagonists of Infallibility
and Absolute Truth is the memorable utterance of The Koresh, Dr Cyrus Teed,
who taught during the early years of this century that we are all living
on the interior surface of a concave sphere. "Believe ME, not Mathematics"
cried The Koresh, "When will you learn that equations are useless?"
Such proclamations from proponents sharing the standpoint of Aquinas are
not unfamiliar; but even in the days of their tyrannical efforts to maintain
an intellectual monopoly, neither the recantation of the aging Galileo
under threat of the red-hot poker and the rack, nor burning Giordano Bruno,
would make the Sun go round the Earth. Faith and belief may be modified
by torturing adherents of unfashionable philosophies, but the realities
of mathematics and physics cannot be placed under arrest or put to death
by Church or by State.
Few people today have even heard of Gödel's Proof, and even fewer
have given much thought to its philosophical implications, but the monolithic
infallibilities of the Belief Systems of the Book (any Book) are shattered
by it. Forced recantations, or burning books, or burning me or anyone else
will not alter that fact. Their only recourse would be in seeking to show
that Gödel's Proof itself is invalid, and in that endeavour they would
find support among many traditional mathematicians who do not like it,
and who have been trying to refute it for 50 years.
All "infallible" belief systems find themselves in the same boat;
driven before the Storms of Chaos onto the rocks which are the rigours
of Gödel's Theorem. The defender of Faith, Saint Thomas Aquinas, like
Gonzo, plays 'Liebestraum' among the wreckage, awaiting the approach of
Seafood, the crustacean devourer of infallible philosophies.
So, can there be any meaningful religion? Perhaps not, I would suggest,
unless it is one where God is called Chaos, in short for Universal Undecidability,
and where "Salvation" for humankind is ultimate freedom from
the frauds of infallibilities and from the laws which legitimize them.
Remember: The proposition "There Can Be No Ultimate Truth" cannot
itself be an ultimate truth.
You can prove that yourself!
APPENDIX - Some examples of Gödel Codons as used in this paper. (After D Hofstadter)
SYMBOL CODON REMARKS AND MNEMONIC HINTS
O 666 Zero
as the Illuminati Sol symbol
S 123 Denotes
numerical successorship
- 111 Visual
resemblance
+ 112 Suggests
additionu 1 + 1 = 2
. 236 Suggests
multiplication. 2 x 3 - 6
b 262 This
codon is conventionally used for 'a' as a free variable, but in this paper
'b'
is
substituted for ease of legibility.
' 163 The
'prime' symbol
{ 212
} 213
( 362
) 323
& 161 Logical
AND
| 616 Logical
OR
~ 223 'Tilde'
Logical NOT
E 333 Existential
Qualifier usually a 'Backwards E'... $
: 636
611 Codon
for new line in a proof sequence.
REFERENCES AND FURTHER READING.
AQUINAS, St T Summa
Theologica 1273 (trans Fathers of the English Dominican Province)
Ed. Univ of Chicago 1952
BREWSTER, C G Liber Cyber (Ecliptica) 1990
CARROLL, P J Liber
Kaos, The Psychonomicon (lOT) 1991
ENCYCLOPAEDIA Various references including. Ed 1988
BRITANNICA Saint
Thomas Aquinas; Emperor Frederick II; Gödel, Kurt; Quine, Willard
van Orman; Doctrine and Dogma, Religious; Russell, Bertrand
HOFSTADTER, D Gödel, Escher, Bach (Penguin)
1979
MICHELL, J Eccentric
Lives and Peculiar Notions 1984 (Thames & Hudson)
ROSA, P de Vicars
of Christ (Corgi) 1988
0
ACKNOWLEDGEMENTS. I am indebted to Peter Carroll for use of the phrase "There can be no Ultimate Truth", and to Hilary Hayes for her perception that "Everything is Permissible" is a preferable usage to "Everything is Permitted" which implies that there is something to do the permitting. Finally I am grateful to Douglas Hofstadter for his clear exposition of the proof of Gödel's Theorem, parts of which I have abstracted from his book 'Gödel, Escher, ~