Any fool can know. The point is to understand.

The foundation of morality should not be made dependent on myth nor tied to any authority lest doubt about the myth or about the legitimacy of the authority imperil the foundation of sound judgment and action.

You ask me if I keep a notebook to record my great ideas. I've only ever had one.

To take those fools in clerical garb seriously is to show them too much honor.

Everything that exists in your life, does so because of two things: something you did or something you didn't do.

I refuse to make money out of my science. My laurel is not for sale like so many bales of cotton.

When you are courting a nice girl an hour seems like a second. When you sit on a red-hot cinder a second seems like an hour. That's relativity.