Science is a collaborative enterprise, spanning the generations. When it permits us to see the far side of some new horizon, we remember those who prepared the way - seeing for them also.

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 don't need anybody to tell you who you are or what you are. You are what you are!

Just because you refuse to acknowledge something, refuse to look at it or think about it, doesn’t mean it’s not there, that it doesn’t affect you and the choices you make in your life.

Desires make slaves out of kings and patience makes kings out of slaves.

I have always found that actively loving saves one from a morbid preoccupation with the shortcomings of society.

Democracy the domination of unreflective and timorous men, moved in vast herds by mob conditions.

Young children give us glimpses of some things that are eternal.

It's very impossible to live by yesterday's standards and expect extraordinary results today. Live life with passion!

...no place is more enchanted than where a unicorn has been born.

Never give up. You only get one life. Go for it!

Both success and struggle are different kinds of trauma.