“To the rational being only the irrational is unendurable, but the rational is endurable.”

“If the transmigration of a soul takes place into a rational being, it simply becomes the soul of that body. But if the soul migrates into a brute beast, it follows the body outside, as a guardian spirit follows a man. For there could never be a rational soul in an irrational being.”

“Per definition, architecture is a service for the whole human being. As such, architecture includes a material and an immaterial aspect; ist has to meet rational and irrational requirements.”

“I have no phobias. Phobias are irrational. My fears are rational and CAREFULLY CULTIVATED, like roses.”

“One must be rational about such matters and being rational need not mean being cold.”

“What we call rational grounds for our beliefs are often extremely irrational attempts to justify our instincts.”

“What I'm saying is that I'm trying to find rational reasons to explain irrational feelings, and that's neveer a good sign.”

“There is no beauty in anything rational. Beauty emerges from the unknown, often from the inane, generally irrational, as unforseen combinations.”

“The core of the Marxist critique of capitalism is that although the individual capitalist is rational (as liberals assume), the capitalist system itself is irrational.”

“Just as negative and fractional rational numbers are formed by a new creation, and as the laws of operating with these numbers must and can be reduced to the laws of operating with positive integers, so we must endeavor completely to define irrational numbers by means of the rational numbers alone. The question only remains how to do this.”