To believe in God is impossible not to believe in Him is absurd.

Those who can make you believe absurdities can make you commit atrocities.

Christianity is the most ridiculous, the most absurd, and bloody religion that has ever infected the world.

[In a letter to Frederick the Great]

I believe that in this world it is impossible to understand God.

To believe a thing impossible is to make it so

Nothing is impossible, you simply just have to believe in it