Science is a self-correcting discipline that can, in subsequent generations, show that previous ideas were not correct.

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?

The meaning and design of a problem seem not to lie in its solution, but in our working at it incessantly.

Prince Charles is the only member of the Royal Family who ever left Cinderella for the Ugly Duckling.

If you're not talking, you're not playing defense

We should not be surprised that the Founding Fathers didn't foresee everything, when we see that the current Fathers hardly ever foresee anything.

A free horse where there is no man on its saddle always looks more beautiful than a slave horse with a man on its saddle!

I am a tremendous 'Star Wars' fan; I know the story means an enormous love to me. I love the characters.

To govern was to serve, not to rule.

Even if we don't have the power to choose where we come from, we can still choose where we go from there.

Poetry, I feel, is a tyrannical discipline, you've got to go so far, so fast, in such a small space that you've just got to turn away all the peripherals.

To have attained to the human form is a source of joy... What an incomparable bliss it is to undergo these countless transitions.