You're unlikely to discover something new without a lot of practice on old stuff, but further, you should get a heck of a lot of fun out of working out funny relations and interesting things.

If you think you understand quantum mechanics, you don't understand quantum mechanics.

Our responsibility is to do what we can, learn what we can, improve the solutions, and pass them on.

It doesn't matter how beautiful your theory is, it doesn't matter how smart you are. If it doesn't agree with experiment, it's wrong.

If you can't explain something to a first year student, then you haven't really understood .

God was invented to explain mystery. God is always invented to explain those things that you do not understand.

Nature uses only the longest threads to weave her patterns, so that each small piece of her fabric reveals the organization of the entire tapestry.

My rule is, when you are unhappy, think about it. But when you're happy, don't. Why spoil it? You're probably happy for some ridiculous reason and you'd just spoil it to know it.

Religion is a culture of faith; science is a culture of doubt.

The only way to deep happiness is to do something you love to the best of your ability

Einstein was a giant. His head was in the clouds, but his feet were on the ground. But those of us who are not that tall have to choose!

It's good to write badly. Things can only get better.

Courage treats the weak better than fear treats the strong.

His management philosophy, tempered in his rain-dancing days, was always to give the project to whoever had the most to gain from success--or the most to lose from failure.

You either keep your childhood innocence or you rot!

If you don't mind, it doesn't matter.

To me if you're going have a show, it should be a show. It should be entertaining and take you on a journey.

What's yours is mine and what's mine is my own.

I love Canada. I am from Canada. I will bash the Canadian government but never Canada.

I always thought about carrying on training and working, chasing my dream.

For me, gratitude only brings positivity. As simplified as it sounds, I think that is key.