Few artists thrive in solitude and nothing is more stimulating than the conflict of minds with similar interests.

I'm sure the universe is full of intelligent life. It's just been too intelligent to come here.

It has yet to be proven that intelligence has any survival value.

I have great faith in optimism as a guiding principle, if only because it offers us the opportunity of creating a self-fulfilling prophecy.

The West needs to relearn what the rest of the world has never forgotten - that there is nothing sinful in leisure as long as it does not degenerate into mere sloth.

Open the pod bay doors, Hal.

The one fact about the future of which we can be certain is that it will be utterly fantastic.