Kurt Gödel:
"Either mathematics is too big for the human mind or the human mind is more than a machine."
Paul Dirac:
" This result is too beautiful to be false; it is more important to have beauty in one's equations than to have them fit experiment."
"God used beautiful mathematics in creating the world. "
Gottlob Frege:
"Every good mathematician is at least half a philosopher, and every good philosopher is at least half a mathematician. "
David Hilbert:
"He who seeks for methods without having a definite problem in mind seeks in the most part in vain. "
Thomas Hobbes:
"Nature itself cannot err"
Carl Jacobi:
"Man muss immer generalisieren."
Pierre-Simon Laplace
"What we know is not much. What we do not know is immense."
"Man follows only phantoms. "
"All the effects of Nature are only the mathematical consequences of a small number of immutable laws. "
Gottfried Leibniz:
" Nothing is more important than to see the sources of invention which are, in my opinion more interesting than the inventions themselves."
William von Ockham:
"It is vain to do with more what can be done with less."
Henri Poincare:
"Mathematicians are born, not made."
" In the old days when people invented a new function they had something useful in mind. Now, they invent them deliberately just to invalidate our ancestors' reasoning, and that is all they are ever going to get out of them. "
Platon:
"He who can properly define and divide is to be considered a god. "
"He is unworthy of the name of man who is ignorant of the fact that the diagonal of a square is incommensurable with its side. "
"The knowledge of which geometry aims is the knowledge of the eternal. "
Max Planck:
"If anybody says he can think about quantum problems without getting giddy, that only shows he has not understood the first thing about them."
Charles Peirce
"The pragmatist knows that doubt is an art which hs to be acquired with difficulty."
Betrand Russel:
"How dare we speak of the laws of chance? Is not chance the antithesis of all law?"
"If I were a medical man, I should prescribe a holiday to any patient who considered his work important."
"The method of "postulating" what we want has many advantages; they are the same as the advantages of theft over honest toil."
"The desire to understand the world and the desire to reform it are the two great engines of progress."
""The whole problem with the world is that fools and fanatics are always so certain of themselves, but wiser people so full of doubts. "
" The point of philosophy is to start with something so simple as not to seem worth stating, and to end with something so paradoxical that no one will believe it. "
Alfred North Whitehead:
"Life is an offensive, directed against the repetitious mechanism of the Universe."
"Seek simplicity, and distrust it. "
"We think in generalities, but we live in details."
"War can protect; it cannot create."
" Familiar things happen, and mankind does not bother about them. It requires a very unusual mind to undertake the analysis of the obvious."
" Now in creative thought common sense is a bad master. Its sole criterion for judgement is that the new ideas shall look like the old ones. In other words it can only work by suppressing originality."
Ludwig Wittgenstein:
"Whereof one cannot speak, thereof one must be silent."
"All mathematics is tautology."
"No one can think a thought for me in the way that no one can don my hat for me."
"Telling someone something he does not understand is pointless, even if you add that he will not be able to understand it."
Ich dachte, ich könnte das ganze durch ein paar Zitate von Mathematikern, Logikern und Physikern ein wenig "auflockern"

Dass die Zitate fast alle Englisch sind, liegt an ihrer Herkunft von einer englischen Seite:
http://www-gap.dcs.st-and.ac.uk/~history/Quotations/index.html
Padreic