Everything that exists in your life, does so because of two things: something you did or something you didn't do.

It is my view that the vegetarian manner of living, by its purely physical effect on the human temperament, would most beneficially influence the lot of mankind.

Insofar as we may at all claim that slavery has been abolished today, we owe its abolition to the practical consequences of science

To a student: Dear Miss - I have read about sixteen pages of your manuscript . . . I suffered exactly the same treatment at the hands of my teachers who disliked me for my independence and passed over me when they wanted assistants. . . . Keep your manuscript for your sons and daughters, in order that they may derive consolation from it and not give a damn for what their teachers tell them or think of them. . . . There is too much education altogether.

I know that philosophically a murderer is not responsible for his crime, but I prefer not to take tea with him.

Common sense is nothing more than a deposit of prejudices laid down by the mind before you reach eighteen.

God did not create evil. Just as darkness is the absence of light, evil is the absence of God.