Who will speak for Planet Earth?

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.

On I’ll pass, dragging my huge love behind me.On whatfeverish night, deliria-ridden, by what Goliaths was I begot – I, so bigand by no one needed?

The thing about friends is, you never know when you might need them. It's always best to keep them imprisoned nearby.

Ask anyone concerned with race to fast, and take note of the response you receive.

Betrayal. It's one of the worst feelings.

Too many of us look upon Americans as dollar chasers. This is a cruel libel, even if it is reiterated thoughtlessly by the Americans themselves.

The love of economy is the root of all virtue.

But, although America cannot be justly charged with violating the rights of Turkey, Turkey nevertheless can be justly charged with violating the rights of America.

Elementary propositions consist of names.

I believe that dance has the power to heal, mentally and physically.

My strengths and weaknesses are the same: I've got the willingness and stupidity to try anything. If I think it's even remotely possible, I'll do it.