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.

I believe in the religion of reason -- the gospel of this world; in the development of the mind, in the accumulation of intellectual wealth, to the end that man may free himself from superstitious fear, to the end that he may take advantage of the forces of nature to feed and clothe the world.

As far as I am concerned I wish to be out on the high seas. I wish to take my chances with wind, and wave, and star. And I had rather go down in the glory and grandeur of the storm, than rot in any orthodox harbor.

There are some truths, however, that we should never forget: Superstition has always been the relentless enemy of science; faith has been a hater of demonstration; hypocrisy has been sincere only in its dread of truth, and all religions are inconsistent with mental freedom.

The more false we destroy, the more room there will be for the true.

When one of your children tells a lie, be honest with him; tell him that you have told hundreds of them yourself. Tell him it is not the best way; that you have tried it. Tell him as the man did in Maine when his boy left home: "John, honesty is the best policy; I have tried both."

The most important thing in this world is liberty. More important than food or clothes - more important than gold or houses or lands - more important than art or science - more important than all religions, is the liberty of man.