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

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.

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.

Who are we? We find that we live on an insignificant planet of a humdrum star lost in a galaxy tucked away in some forgotten corner of a universe in which there are far more galaxies than people.

Whether the glass is half empty or half full, you have the power to fill it up.

If I'd learned nothing else in my twenty-seven years on this planet, I'd learned that when someone gives you something totally unexpected and undeserved, you don't ask questions.

Faith is trusting yourself to believe in uncertainties.

But, you know, I feel more fellowship with the defeated than with saints. Heroism and sanctity don't really appeal to me, I imagine. What interests me is being a man.

John F. Kennedy asked us what we could do for America. This Democratic Party asks what can government give you. Don't worry about paying the bill, it's on your kids and grandkids.

I didn't like dancing in Canada. The managers of the clubs treated me as less than a cow. And Canadians don't tip so you have to ask for more base pay.

Children can write poetry and then, unless they're poets, they stop when reach puberty.

The director has to win, because you should never force a director to shoot something they don't believe in.

We are as humans essentially products of our hardware - that is an insight that I've taken with me into the trading side.

I dont think I could do a superhero movie. Im just not really that type of guy.