Every cell is a triumph of natural selection, and we’re made of trillions of cells. Within us, is a little universe.

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.

You go back to the gym and you just do it again and again until you get it right.

As a sunbeam perishes when cut off from the sun, so man apart from God would pass back into the void of nothingness from which he first leaped at the creative call.

Every Englishman is an average Englishman: it is a national characteristic.

The hardest thing to believe when you're young is that people will fight to stay in a rut, but not to get out of one.

All the choir of heaven and furniture of earth - in a word, all those bodies which compose the frame of the world - have not any subsistence without a mind.

There is a way to be good again.

The most important thing is to continue to be yourself. The day after the Oscars, you have to get on with your life. To be honest and true to yourself.

A little experience often upsets a lot of theory.

I hope the two wings of the Democratic Party may flap together.

Where is [Ariel] Sharon who, planning to be one of the big heroes of Israel, became one of the killers, criminals, killing our small kids in Sabra and Chatila. Where is Alexander Haig?