I have always felt that doubt was the beginning of wisdom, and the fear of God was the end of wisdom.

I am simply an agnostic. I haven't yet had time or opportunity to explore the universe, and I don't know what I might run on to in some nook or corner.

Do you think you can cure the hatreds and the maladjustments of the world by hanging them? You simply show your ignorance and your hate when you say it. You may here and there cure hatred with love and understanding, but you can only add fuel to the flames by cruelty and hate.

There are a lot of myths which make the human race cruel and barbarous and unkind. Good and Evil, Sin and Crime, Free Will and the like delusions made to excuse God for damning men and to excuse men for crucifying each other.

My constitution was destroyed long ago; now I am living under the bylaws.

The difference between the child and the man lies chiefly in the unlimited confidence and buoyancy of youth.

I am sure of very little, and I shouldn't be surprised if those things were wrong.