Those with the courage to explore the weave and structure of the Cosmos, even where it differs profoundly from their wishes and prejudices, will penetrate its deepest mysteries.

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

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

Billions and billions.

The dumbing down of America is evident in the slow decay of substantive content, a kind of celebration of ignorance.

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.

Those who seek power at any price detect a societal weakness, a fear that they can ride into office.