The limits on your enlightenment come not from the age you stopped going to school but from the age you stopped being curious.

Need a distraction today? Not only does 12 + 1 = 11 + 2, but the letters "twelve plus one" rearrange to give you "eleven plus two."

The last person I ever want working for me is someone who says 'that's not in my job description.

We're talking about a being whose very existence challenges our own sense of priority in the universe.

Grab something off the shelf that's on the spaceship-an ashtray, it doesn't matter what. Because I can tell you, if they flew here from another galaxy, no matter what you've pulled off the shelf, it'll be unlike anything we have on Earth.

I'm fascinated by the deaths of stars and the havoc they wreak on their environments.

If you love what you do, you'll be your best at it compared to anything else you might have chosen as a career. Or at least you will love it more, and you won't lead a depressed day of your life.