All mass is interaction.

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!

One good thing about love, when it touches you, time stands still.

Someone who lives always with a plane schedule in the drawer lives on a slightly different calendar.

I have my own matches and sulphur, and I'll make my own hell.

Fasting confirms our utter dependence upon God by finding in Him a source of sustenance beyond food.

Just... ate," M says, frowning at me a little. "Two days...ago." I grab my stomach again. "Feel empty. Feel... dead." He nods. "Marr...iage.

When you are here, you are here. When you are gone, you are gone. It isn't a problem to be gone, so long as you are really here when you're here.

A genius who does not know that he is a genius is no genius.

Brands must be very specific in their choice of social media platforms through which to communicate their CSR or cause messaging.

The only way I will leave this job will be because of results. I'm too stubborn to quit because of criticism - too stubborn.

Pardon, gentles all, the flat unraised spirits that have dared on this unworthy scaffold to bring forth so great an object.