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 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.

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!

I, a universe of atoms, an atom in the universe.

Fly free spirits fly, for if you reach heaven before me, then at least I know to this world I have more love to apply. " ~ Roy Hale

Act with the heart of the warrior.

Men are by nature merely indifferent to one another but women are by nature enemies.

You can only breathe out if you breathe in.

High thinking is inconsistent with a complicated material life based on high speed and imposed on us by mammon worship.

One can acquire some virtues by feigning them for a long time.

The best of Mozart's works cannot be even slightly rewritten without diminishment.

I love the stage. It's terrifying in a way that film and television is not. When you're about to go out, and you're adrenaline just gets out of control, and that can be really daunting.

When the nature of the thing is incomprehensible, I can acquiesce in the Scripture: but when the signification of words is incomprehensible, I cannot acquiesce in the authority of a Schoolman.

Because no battle is ever won he said. They are not even fought. The field only reveals to man his own folly and despair, and victory is an illusion of philosophers and fools.