The difference between physics and metaphysics is not that the practitioners of one are smarter than the practitioners of the other. The difference is that the metaphysicist has no laboratory.

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.

...she stood beside him, sagging in his arms, abandoning herself to anything he wished, in open acknowledgment of his power to reduce her to helplessness by the pleasure he had the power to give her.

Go see 'Hidden Figures, ' and take a young person! It will give a more positive outlook on what is possible if you work hard, do your best, and are prepared.

He who exercises government by means of his virtue may be compared to the north polar star, which keeps its place and all the stars turn towards it.

I think if you watch most of my films with the sound off, you could still tell what's going on.

I had one typewriter for 50 years, but I have bought seven computers in six years. I suppose that's why Bill Gates is rich, and Underwood is out of business.

The origin of every sin of the heart is love of this world.

I check my pulse and if I can find it, I know I've got a chance

Maturity is the ability to live in someone else's world.

Today, let us swim wildly, joyously in gratitude.

I’m not trying to hurt you; I’m trying to make you better.