It was the mark of a barbarian to destroy something one could not understand.

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.

You will never understand the real definition of insanity until the day you are told it is unreasonable for you to feel hurt by the very people that hurt you.

…if you will quit squirming about and be patient you will see that most things in life, wishes included, do not have immediate results.

It is easy to make plans in this world

I’ve trusted human women before. Twice. The first died, and the second paid a terrible price and despises me. Never, ever again.

When I was teaching at the University of Tehran we were struggling against the implementation of the revolution rules.

Defer not charities till death; for certainly, if a man weigh it rightly, he that doth so is rather liberal of another man's than of his own.

I had to watch government fail for 25 years doing consumer reporting before I really saw it because intuitively, the reaction is problem, bring government and government will make it better.

I will offer thanks for someone who paid a price for offering compassion to me. I will place myself beneath the cross of another who needs my compassion.

Speaking of competition in the fast-food industry. This is rat eat rat, dog eat dog. I'll kill 'em, and I'm going to kill 'em before they kill me.

We are no longer going to ask for the land, but we are going to take it without negotiating.