To be different is not necessarily to be ugly; to have a different idea is not necessarily to be wrong. The worst possible thing is for all of us to begin to look and talk and act and think alike.

Why are we now going into space? Well, why did we trouble to look past the next mountain? Our prime obligation to ourselves is to make the unknown known. We are on a journey to keep an appointment with whatever we are.

I wish I had more control, more like Edgar Rice Burroughs had, but I'm a realist, too. I work in television. I don't know that I would want to spend the rest of my life controlling my characters.

It isn't all over; everything has not been invented; the human adventure is just beginning.

The glory of creation is in its infinite diversity.

I'm in a period of growth and expansion. I'm taking long, hard looks at the world and what's happening in it, analyzing and thinking. I'm trying to become acquainted with the universe - with the part of it I occupy - and trying to settle, for myself, what my relationship with it is.

The strength of a civilization is not measured by its ability to fight wars, but rather by its ability to prevent them.