First rule in government spending: why build one when you can have two at twice the price?

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.

Every blade in the field - Every leaf in the forest - lays down its life in its season as beautifully as it was taken up.

During times of war, hatred becomes quite respectable even though it has to masquerade often under the guise of patriotism.

I really didn't study any music. I just picked it up real quick.

I think that the whole voyeuristic attitude of filmmakers or of me personally - of shooting documentaries and so forth - is an important issue.

I wouldn't change my past for anything, because I think it's made me who I am. I'm so enormously grateful for all that I have in my life.

Hardening of the hearteries is the most serious affliction besetting marriage, and warm, good-humored, approving words are the only effective preventive.

I guess there were fewer differences between me and social psychologists than between me and other people in general

Around 14, I was turned on to Shania, Reba, Merle Haggard, Garth Brooks, Trisha Yearwood... and I've followed it ever since.

Well, Mitt Romney is a very attractive comedic target. He’s irresistible to me. I mean seriously, I want to pay less attention to him.

Life's greatest setbacks reveal life's biggest opportunities.