The words "question" and "quest" are cognates. Only through inquiry can we discover truth.

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.

By means of positive imaginations, leaders bring the future to the present so that they can work on it before setting off to enter it.

To sacrifice anything is of great honor. To sacrifice everything is of God.

All the little duckies with their heads in the waterHeads in the waterAll the little duckies with their heads in the waterOh, such sweet little duckies.

Any company large enough to have a research lab is too large to listen to it.

I never liked being photographed. I just happened to be good at it.

I question the political judgement of those who would have the nerve to paint Christ white with his obvious African nose, lips and wooly hair.

As much as I have films and all that sort of stuff, a lot of my memories are to do with relationships and love.

It's the group sound that's important, even when you're playing a solo. You not only have to know your own instrument, you must know the others and how to back them up at all times. That's jazz.

I was really too honest a man to be a politician and live.

The way to heaven out of all places is of length and distance.