Worse still, it isn’t actually necessary to look to space for petrifying danger. As we are about to see, Earth can provide plenty of danger of its own.

Physics is really nothing more than a search for ultimate simplicity, but so far all we have is a kind of elegant messiness.

In terms of adaptability, humans are pretty amazingly useless.

Energy is liberated matter, matter is energy waiting to happen.

Consider the Lichen. Lichens are just about the hardiest visible organisms on Earth, but the least ambitious.

The universe is an amazingly fickle and eventful place, and our existence within is a wonder.

On a cooler sun on a primordial earth: "I later learned that biologists, when they are feeling jocose, refer to this as the 'Chinese Resaturant Problem'--because we has a dim sun.

It seems impossible that you could get something from nothing, but the fact that once there was nothing and now there is a universe is evident proof that you can.

For the moment we might very well can them DUNNOS (for Dark Unknown Nonreflective Nondetectable Objects Somewhere).

(It’s) a fair exchange. You’re giving me attention. That’s a form of affection, you know.

I have ever been the queerest mixture of weakness and strength, and have paid heavily for the weakness.

Anyone with a gun can go out and commit an act of terrorism, even without a political affiliation.

I like to go hear jazz late-night up in Harlem.

Glenn Beck does have a dream. Unfortunately, it's the kind of dream you have when you eat four pepperoni hot pockets right before bed.

Freedom, which is an aspect of health, remains impossible as long as we perceive our bodies as a complete definition of ourselves.

brains last, beauty doesn't.

Education as the exercise of domination stimulates the credulity of the students.

After 'Urinetown,' 'Avenue Q' and now 'Mormon,' is there an envelope remaining to be pushed?

Peyton Manning is a true leader. A legend. I love the way he is always in control. You never see him too frustrated, never see him too happy.