Men may believe what they cannot prove. They may not be put to the proof of their religious doctrines or beliefs.

We are a religious people whose institutions presuppose a Supreme Being. . . . We find no such Constitutional requirement which makes it necessary for government to be hostile to religion and to throw its weight against efforts to widen the effective scope of religious influence. . . . The First Amendment does not say that in every and all respects there shall be a separation of church and state.

Religious doctrines … are all illusions, they do not admit of proof, and no one can be compelled to consider them as true or to believe in them.

Religious experiences which are as real as life to some may be incomprehensible to others.

We are a religious people whose institutions presuppose a Supreme Being.

I don't believe it. Prove it to me and I still won't believe it.