No matter how hard you try to teach your cat general relativity, you're going to fail.

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?

She understood the nature of sin and knew that its most volatile form was the kind that did not recognize itself.

Simplicity is the essence of genius.

Some say that he has no understanding of clouds, and that his ear wax tastes like Turkish Delight. All we know is he’s called the Stig.

I look at being older and gaining wisdom. I've learned to stay fit and healthy. I accept my body, my life, and my circumstances.

We have a small wish in 2008. We would like to conquer Asia.

Greece is an extreme case: a country where both the level of spending and the level of taxation were unsustainable!

God gives us health so that we may serve the sick.

Other people's deconstruction of your motivations doesn't help you do what you do. You can't swallow and think about swallowing at the same time.

Questions of such gravity go down to the very foundations of the government. If the provisions of the Constitution can be set aside by an act of Congress, where is the course of usurpation to end?

Funny how we look for miracles in our lives when our life is one big miracle in itself.