Sometimes nature guards her secrets with the unbreakable grip of physical law. Sometimes the true nature of reality beckons from just beyond the horizon.

Sometimes attaining the deepest familiarity with a question is our best substitute for actually having the answer.

Science is the process that takes us from confusion to understanding.

When kids look up to great scientists the way they do to great musicians and actors, civilization will jump to the next level

Exploring the unknown requires tolerating uncertainty.

We're on this planet for the briefest of moments in cosmic terms, and I want to spend that time thinking about what I consider the deepest questions.

Intelligence is the ability to take in information from the world and to find patterns in that information that allow you to organize your perceptions and understand the external world.

I was holding [my four-year-old daughter] and I said, 'Sophia, I love you more than anything in the universe.' And she turned to me and said, 'Daddy, universe or multiverse?'

Free will is the sensation of making a choice. The sensation is real, but the choice seems illusory. Laws of physics determine the future.

All you are is a bag of particles acting out the laws of physics. That to me is pretty clear.

Physics grapples with the largest questions the universe presents. Where did the totality of reality come from? Did time have a beginning?

I've got my own toilet." -- Grace Harper

The flesh would shrink and go, the blood would dry, but no one believes in his mind of minds or heart of hearts that the pictures do stop.

It is for God to punish wicked people; we should learn to forgive.

My head was always bubbling over with facts and it seems to me this had little to do with my paying close attention in school and more to do with my voracious and omnivorous reading habits.

Like as a wise man in time of peace prepares for war.

As soon as we find ourselves working at being indispensable, rigging up a pattern of vulnerability in our loved ones, we know that our love has taken the socially sanctioned form of egotism.

Life is also a mixture of unsolved problems, ambiguous victories and vague defeats-with very few moments of clear peace.

In Indiana, I wasn't anything special. But in New York, I've gone out with girls with purple hair who go out with me because I'm exotic!

A trader does not squander his body as fodder or his soul as alms.

Producing is easier, I can just be at the set overseeing the story.