I count religion but a childish toy, And hold there is no sin but ignorance.

The sciences are not sectarian. People do not persecute each other on account of disagreements in mathematics. Families are not divided about botany and astronomy does not even tend to make a man hate his father and mother. It is what people do not know that they persecute each other about. Science will bring, not a sword, but peace.

Religion is not merely the opium of the masses, it's the cyanide.

I cannot be angry at God, in whom I do not believe.

To sum up: 1. The cosmos is a gigantic flywheel making 10,000 revolutions a minute. 2. Man is a sick fly taking a dizzy ride on it. 3. Religion is the theory that the wheel was designed and set spinning to give him a ride.

I do not believe in the creed professed by the Jewish Church, by the Roman Church, by the Greek Church, by the Turkish (Muslim) Church, by the Protestant Church, nor by any Church that I know of. My own mind is my own Church.

The invisible and the non-existent look very much alike.

“For those who believe in God, most of the big questions are answered. But for those of us who can't readily accept the God formula, the big answers don't remain stone-written. We adjust to new conditions and discoveries. We are pliable. Love need not be a command nor faith a dictum. I am my own god. We are here to unlearn the teachings of the church, state, and our educational system. We are here to drink beer. We are here to kill war. We are here to laugh at the odds and live our lives so well that Death will tremble to take us.”

Religions are like fireflies. They require darkness in order to shine.

Existentialism isn't so atheistic that it wears itself out showing that God doesn't exist. Rather, it declares that even if God did exist, that would change nothing.