RELIGION: A set of beliefs held as dogmas, dominating the conduct of life, going beyond or contrary to evidence, and inculcated by methods which are emotional or authoritarian, not intellectual.

There are three ways of securing a society that shall be stable as regards population. The first is that of birth control, the second that of infanticide or really destructive wars, and the third that of general misery except for a powerful minority.

It is not by delusion, however exalted, that mankind can prosper, but only by unswerving courage in the pursuit of truth.

Most people would sooner die than think; in fact, they do so.

The degree of one's emotions varies inversely with one's knowledge of the facts - the less you know the hotter you get.

America... where law and custom alike are based upon the dreams of spinsters...

The luxury to disparage freedom is the privilege of those who already possess it.