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

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

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

We have heard the rationales offered by the nuclear superpowers. We know who speaks for the nations. But who speaks for the human species? Who speaks for Earth?

We make our world significant by the courage of our questions and by the depth of our answers.

Extraordinary claims require extraordinary evidence.

The Cosmos is all that is or ever was or ever will be.

Those afraid of the universe as it really is, those who pretend to nonexistent knowledge and envision a Cosmos centered on human beings will prefer the fleeting comforts of superstition.