I try to educate the public and let them make the decisions for themselves.

In science, if you don't do it, somebody else will. Whereas in art, if Beethoven didn't compose the 'Ninth Symphony,' no one else before or after is going to compose the 'Ninth Symphony' that he composed; no one else is going to paint 'Starry Night' by van Gogh.

If there's a Devil, that mean's there's a God.

A successful day for me is when I teach people something. They become enlightened by an idea and learn how to think about it, so that later on when someone says, "Tell me about x, y, z," they don't have to say, "I know this because Tyson told me." No, they'll say, "Here's why it's true because I know and understand it."

Not only do we live among the stars, the stars live within us.

The solar system should be viewed as our backyard, not as some sequence of destinations that we do one at a time.

It's my duty to enlighten people.