If we're damaged it will take 20 years to fix ourselves. It only takes one year to cause 20 years of damage.

Because I helped discover the expansion rate of the universe was accelerating.

Australians have a free spirit and an ability to think outside the box, and that is why I like Australia so much.

There can be theory but, you know, the problem is you've got to be able to test it. So theories are one thing, testing is another.

Science is not, despite how it is often portrayed, about absolute truths. It is about developing an understanding of the world, making predictions, and then testing these predictions.

See driving is like stabbing someone, it's very personal. While flying is like shooting someone, it's more distant.

When I was a kid growing up, my dad being a football coach, he asked the same question of all the assistants that he ever hired: 'Is your goal to be a head football coach?

You've got one job, and that is to get better.

This was the most emotional title of my career. I was the youngest champion, and now I'm the oldest.

"I won't apologize for my past. A man is supposed to have experience." "From all indications, you've acquired enough for ten men".

If you truly hold a stone, you can feel the mountain it came from.

The one certain way for a woman to hold a man is to leave him for religion.

Love is freedom. The freedom to express the most joyous part of Who You Are. The part that knows that you are One with everything and everyone.

A country's middle class is its bedrock.

In thinking about 'depressing movies,' many people don't realize that all bad movies are depressing, and no good movies are.