The well-meaning contention that all ideas have equal merit seems to me little different from the disastrous contention that no ideas have any merit.

Somewhere, something incredible is waiting to be known.

It is far better to grasp the universe as it really is than to persist in delusion, however satisfying and reassuring.

The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.

Imagination will often carry us to worlds that never were. But without it we go nowhere.

I don't want to believe. I want to know.

The absence of evidence is not the evidence of absence.

The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.

We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology.

For small creatures such as we the vastness is bearable only through love.

You have to know the past to understand the present.

Happiness is not something you postpone for the future

The young man knows the rules but the old man knows the exceptions.

I now had enough faith not only to believe there were answer, but to feel certain that those answers would become apparent at some point in the future.

The greatest success goes to the person who is not afraid to fail in front of even the largest audience.

Sometimes I think I might insult people by being openly flirtatious, then snatching it back.

The only true immortality is when you don't care if you die. The moment you stop giving credence to gain is when you become invulnerable to pain.

If you break someone's leg, shouldn't you have to be the crutch for a while?

I really get fired up with female protagonists. I can really feel the difference in myself when I am writing a script that has a woman at the center.

No one is in charge of your happiness except you.