"One can see clearly some ambivalence in Dirac's attitudes... On the one hand, he has repeated many, many times his conviction that beauty in the fundamental equations of physics has priority... On the other hand... we see Dirac deeply involved with approximate calculations whose only purpose was to obtain an answer which the experimenters could rely upon."

"A proven theorem of game theory states that every game with complete information possesses a saddle point and therefore a solution."

"Our... cognitive architecture is based on a formal theory... the PSI theory... has been turned into a computational model... MicroPSI... partially implemented as a computer program."

"The progress of science is not a simple linear advance, each stage marking the solution of posing of problems previously implicit or explicit in it, and in turn posing new problems."

"The more clearly we express it that the whole weight of our future victories will lie on our enemies, the more, in my opinion, will it tend to shorten the war. We have covered a considerable distance …"