You can't possibly be a scientist if you mind people thinking that you're a fool.

So, the world is fine. We don’t have to save the world—the world is big enough to look after itself. What we have to be concerned about, is whether or not the world we live in, will be capable of sustaining us in it. That’s what we need to think about.

One of the problems of taking things apart and seeing how they work - supposing you're trying to find out how a cat works--you take that cat apart to see how it works, what you've got in your hands is a non-working cat. The cat wasn't a sort of clunky mechanism that was susceptible to our available tools of analysis.

I watched the gorilla's eyes again, wise and knowing eyes, and wondered about this business of trying to teach apes language. Our language. Why? There are many members of our own species who live in and with the forest and know it and understand it. We don't listen to them. What is there to suggest we would listen to anything an ape could tell us? Or that it would be able to tell us of its life in a language that hasn't been born of that life? I thought, maybe it is not that they have yet to gain a language, it is that we have lost one.

The future of computer power is pure simplicity.

I'm so great even I get tongue-tied talking to myself.

I refuse to answer that question on the grounds that I don't know the answer