Injustice upon earth renders the justice of of heaven impossible.

Orthodox Christians have the habit of claiming all great men, all men who have held important positions, men of reputation, men of wealth. As soon as the funeral is over clergymen begin to relate imaginary conversations with the deceased, and in a very little while the great man is changed to a Christian - possibly to a saint.

Death is only perfect rest.

In a world of cruelty, sympathy is a crime, and in a world of lies, truth is blasphemy.

If I go to heaven I want to take my reason with me.

When I became convinced that the universe is natural, that all the ghosts and gods are myths, there entered into my brain, into my soul, into every drop of my blood the sense, the feeling, the joy of freedom. The walls of my prison crumbled and fell. The dungeon was flooded with light and all the bolts and bars and manacles became dust.

Our ignorance is God; what we know is science. When we abandon the doctrine that some infinite being created matter and force, and enacted a code of laws for their government ... the real priest will then be, not the mouth-piece of some pretended deity, but the interpreter of nature.