There might be very primitive life in our solar system—single-cell animals, that sort of thing.

Here’s the thing with me and the religious thing. This is the flat-out truth: I find the religiosity and philosophy in the music. I don’t find it anywhere else.

In any moment of decision, the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

You see things; and you say 'Why?' But I dream things that never were; and I say 'Why not?'

It is one thing to show a man that he is in an error, and another to put him in possession of the truth.

Everything is true and not true about everything. That’s one thing I’ve learned.