If today you can take a thing like evolution and make it a crime to teach it in the public school, tomorrow you can make it a crime to teach it in the private schools, and the next year you can make it a crime to teach it to the hustings or in the church. At the next session you may ban books and newspapers. Soon you may set Catholic against Protestant and Protestant against Protestant, and try to foist your own religion upon the minds of men.

I cannot tell and I shall never know how many words of mine might have given birth to cruelty in place of love and kindness and charity.

The fear of God is not the beginning of wisdom. The fear of God is the death of wisdom. Skepticism and doubt lead to study and investigation, and investigation is the beginning of wisdom.

The purpose of man is like the purpose of a pollywog - to wiggle along as far as he can without dying; or, to hang to life until death takes him.

One cannot live through a long stretch of years without forming some philosophy of life.

The purpose of life is to live it.

Human action is governed largely by instinct and emotion.