One must not attempt to justify them, but rather to sense their nature simply and clearly.

I believe that pipe smoking contributes to a somewhat calm and objective judgement in all human affairs.

Most of the fundamental ideas of science are essentially simple, and may, as a rule, be expressed in a language comprehensible to everyone.

Except in mathematics, the shortest distance between point A and point B is seldom a straight line. I don't believe in mathematics.

Thought is the organizing factor in man, intersected between the causal primary instincts and the resulting actions.

A religious person is devout in the sense that he has no doubt about the significance of those superpersonal objects and goals which neither require nor are capable of rational foundation

You teach me baseball and I'll teach you relativity...No we must not. You will learn about relativity faster than I learn baseball.