Is there any knowledge in the world which is so certain that no reasonable man could doubt it?

Ignore fact and reason, live entirely in the world of your own fantastic and myth-producing passions; do this whole-heartedly and with conviction, and you will become one of the prophets of your age.

The great majority of men and women, in ordinary times, pass through life without ever contemplating or criticising, as a whole, either their own conditions or those of the world at large.

The method of "postulating" what we want has many advantages; they are the same as the advantages of theft over honest toil.

Boredom is... a vital problem for the moralist, since half the sins of mankind are caused by the fear of it.

Mysticism is, in essence, little more than a certain intensity and depth of feeling in regard to what is believed about the universe.

I am allowed to use plain English because everybody knows that I could use mathematical logic if I chose.