When you have stopped learning you have begun to die.

That's the ultimate pornography. There's nothing more pornographic than glorifying war.

Probably what pushed the Russians over the edge was SDI... They realized they couldn't beat us...

No matter what you or anyone else does, there will be someone who says that there's something bad about it.

Once you stop believing in Santa Claus, the whole world just goes downhill.

It was one thing to use computers as a tool, quite another to let them do your thinking for you.

Every person you meet - and everything you do in life - is an opportunity to learn something.