Graph theory

	"Albert's path is a strange and difficult one."

	- Agent Cooper, Twin Peaks



	"When two paths split in the woods, I choose the one less
	 travelled upon."

	-  Robert Frost



Group theory

	"The Theory of Groups is a branch of mathematics in which one
	 does something to something and then compares the result with 
	 the result obtained from doing the same thing to somethinmg 
	 else, or something else to the same thing."

	- James R. Newman


Number theory

	"The real Universe arched sickeningly away beneath them.  
	 Various pretend ones flitted silently by like mountain goats.  
	 Primal light exploded, splattering space-time as with gobbets 
	 of Jell-O.  Time blossomed, matter shrank away. The highest 
	 prime number coalesced quietly in a corner and hid itself away
	 forever."

	- Douglas Adams


	"It is recorded that all God's works were completed in six days,
	 because six is a perfect number... For this is the first number
	 made up of divisors, a sixth. a third and a half, respectively, 
	 one, two and three, totaling six."

	- St Agustine of Hippo


	"I have found a very great number of exceedingly beautiful
	 theorems."

	- Pierre de Fermat



	"Yet what are all such gaieties to me whose thoughts are full of
	 indices and surds? x^2 + 7x + 53 = 11/3."

	- Lewis Carrol



	"I belive there are exactly 157477241362750025776056539611815554680
	 44717914527116709366231425076185631031296 protons in the universe."

	- Sir Arthur Eddington



	"What is a number, that a man may know it, and a man, that he may know 
	 a number."
	
	- Warren McCulloch



Probability

	"If you hyperventilate and then empty your lungs, you will last 
	 about thirty seconds in the vacuum of space. However, because 
	 space is so vastly hugely mind-bogglingly big, getting picked up 
	 by another ship within those thirty seconds is almost infinitely 
	 improbable."

	- Douglas Adams


	"An ancestor of mine maintained that if you eliminate the impossible,
  	 whatever remains, however improbable, must be the truth."

	- Mr Spock




Learning/intelligence/logic


	"The Ravenous Bugblatter Beast of Traal is a mind-bogglingly stupid 
	 animal. It has almost no capacity for learning from experience and 
	 is therefore surprised by virtually everything that happens to it. 
	 Here is an example of how stupid it is: it thinks that if you can't 
	 see it, it can't see you. Its behavior would be quite endearing if 
	 it wasn't spoilt by this one thing: it is the most violently 
	 carnivorous creature in the Galaxy. Avoid, avoid, avoid."

	- Douglas Adams


	"As far as the propositions of Mathematics refer to reality, they
	 are not certain, and as far as they are certain, they do not refer
	 to reality."

	- Albert Einstein



	"Thirty million generations of philosophers have debated the definition 
	 of intelligence. The most popular definition appears in the Sirius 
	 Cybernetics Corporation android manuals: ''Intelligence is the ability 
	 to reconcile totally contradictory situations without going completely 
	 bonkers -- for example, having a stomach ache and not having a stomach 
	 ache at the same time, holding a hole without the doughnut, having good 
	 luck and bad luck simultaneously, or seeing a real estate agent waive his 
	 fee.''"

	- Douglas Adams


	"We demand rigidly defined areas of doubt and uncertainty!"

	- Douglas Adams


	Valeris: "A lie?"
	Spock: 	 "An error."

	- Star Trek

	

	"If the fact that something is self-evident does not imply its validity, 
	 then self-evidence can not be considered a proof of correctness." 

	- L. Wittgenstein

	
	"There was only one catch and that was Catch-22, which specified that a 
	 concern for one's safety in the face of dangers that were real and 
	 immediate was the process of a rational mind. Orr was crazy and could 
	 be grounded. All he had to do was ask, and as soon as he did, he would 
	 no longer be crazy and would have to fly more missions. Orr would be 
	 crazy to fly more missions and sane if he didn't, but if he was sane he 
	 had to fly them. If he flew them he was crazy and didn't have to; but if 
	 he didn't want to he was sane and had to."

        - Catch-22, By Joseph Heller



	"Mediocrity knows nothing higher than itself; but talent instantly 
	 recognizes genius."

        - Complete Sherlock Holmes; Valley of Fear


	"Most people would rather die than think; in fact, they do so."
        
	- Bertrand Russell


Computers

	"A typically unreliable Sirius Cybernetics Corporation product, 
	 the Nutrimat analyses the user's neural paths to provide the 
	 (supposedly) ideal offering. Its computing power is frankly abysmal, 
	 so the optional computer interface is a good thing to go for."

	- Douglas Adams


	"I'm attempting to construct a mnemonic memory circuit, using stone
  	 knives and bearskins."

	- Mr Spock, "The City On The Edge Of Forever", 



Algorithms


	"How do tou catch lions in the desert? Answer: In the desert you
	 have lots of sand and a few lions; so you take a sieve and sieve
	 out the sand, and the lions remain."

	- Sir Arthur Eddingtom


Misc

	"They couldn't think of a number, so they gave me a name."

	- Rupert Hine