We will know which stars to visit. Our descendants will then skim the light years, the children of Thales and Aristarchus, Leonardo and Einstein.

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.

If you wish to make an apple pie from scratch, you must first invent the universe.

There are many hypotheses in science which are wrong. That’s perfectly all right: it’s the aperture to finding out what’s right. Science is a self-correcting process.

Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another.

And you are made of a hundred trillion cells. We are, each of us, a multitude.

The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together.

A galaxy is composed of gas and dust and stars - billions upon billions of stars. Every star may be a sun to someone.

We are a way for the cosmos to know itself.

It is said that men may not be the dreams of the god, but rather that the gods are the dreams of men.

We are star stuff which has taken its destiny into its own hands.

Nothing is impossible no matter how improbable, all things can be done before the rising sun!

I need one of those chapter breaks. I just want to catch my breath, but I have no idea how.

I keep six honest serving men. (They taught me all I know) Their names are What and Why and When and How and Where and Who.

Vision - It reaches beyond the thing that is, into the conception of what can be. Imagination gives you the picture. Vision gives you the impulse to make the picture your own.

After another moment's silence she mumbled that I was peculiar, that that was probably why she loved me but that one day I might disgust her for the very same reason.

When a nation or family is about to flourish, there are sure to be happy omens; and when it is about to perish, there are sure to be unlucky omens.

The key to my work is that I stopped, physically, to observe something. I raised my camera and recorded my observations.

When I used to read fairy-tales, I fancied that kind of thing never happened, and now here I am in the middle of one!

If you want to cure boredom, be curious. If you're curious, nothing is a chore; it's automatic - you want to study. Cultivate curiosity, and life becomes an unending study of joy.

The owl goes not into the nest of the lark.