It's hard to teach passionately about something that you don't have a passion for.

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 have never been shy about listening to the input of others and weighing it seriously.

I knew very early on that there would be quite a bit of attention: Superman is known all over the place.

Anyone can give up; it is the easiest thing in the world to do. But to hold it together when everyone would expect you to fall apart, now that is true strength.

A ballad once in a while doesn't go amiss

Every golfer has a little monster in him. It's just that type of sport.

Leaders lead out of who they are on the inside.

Comfort is very important to me. I think people live better in big houses and in big clothes.

I'm happy 'bout life. Still trying. I ain't giving up on life.

Moralists and philosophers have adjudged those who throw temptation in the way of the erring, equally guilty with those who are thereby led into evil

To the worldy man Karma is a stern Nemesis, to the spiritual man Karma unfolds itself in harmony with his highest aspirations.