Isaac Asimov is, in reality, based on something I had invented a few years previously.

The limits of the possible can only be defined by going beyond them into the impossible.

I don't believe in astrology; I'm a Sagittarius and we're skeptical.

The only way to define your limits is by going beyond them.

The greatest tragedy in mankind's entire history may be the hijacking of morality by religion.

The moon is the first milestone on the road to the stars.

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

Any sufficiently advanced technology is indistinguishable from magic.

There is hopeful symbolism in the fact that flags do not wave in a vacuum.

Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.

Until we get rid of religion, we won't be able to conduct the search for God.

Colors speak all languages.

Anyone can be a father, but it takes someone special to be a dad, and that's why I call you dad, because you are so special to me. You taught me the game and you taught me how to play it right.

What strikes me as funny about Elvis is that all the impersonators choose to do the Vegas Elvis; not the young, cool guy, always the bloated fool.

I'd rather be in the heart of Africa in the will of God, than on the throne of England, out of the will of God.

Even the best things are not equal to their fame.

Russia will occupy most of the good food lands of central Europe while we have the industrial portions. We must find some way of persuading Russia to play ball.

There are downsides to every technology. Fire kept us warm, but also burned down our villages.

Old men do it better. We're not so sensitive in certain areas.

I am interested in the loneliness and isolation that we can feel when we hide feelings we are ashamed of, especially if they concern people that we love.

Mellow nuts have the hardest rind.