There is no freedom on earth or in any star for those who deny freedom to others.

Enthusiasm is like having two right hands.

The reward of a good deed is in having done it.

Every man should have a college education in order to show him how little the thing is really worth.

Formal religion was organized for slaves: it offered them consolation which earth did not provide.

The goal of evolution is self - conquest

When certain unmarried men, who had lost their capacity to sin, sat indoors, breathing bad air, and passed resolutions about what was right and what wrong, making rules for the guidance of the people, instead of trusting to the natural, happy instincts of the individual, they ushered in the Dark Ages. These are the gentlemen who blocked human evolution absolutely for a thousand years.