A lot of my research time is spent daydreaming - telling an imaginary admiring audience of laymen how to understand some difficult scientific idea.

There is so much to groak; So little to groak from.

Einstein, in the special theory of relativity, proved that different observers, in different states of motion, see different realities.

You have to say now that space is something. Space can vibrate, space can fluctuate, space can be quantum mechanical, but what the devil is it?

Unforeseen surprises are the rule in science, not the exception. Remember: Stuff happens.

[Richard Feynman] truly believed that if you couldn't explain something simply, you didn't understand it.

I was from a poor Jewish family in the South Bronx. My father was a plumber, but when I was 16, he got sick and I had to take over. Being a plumber in the South Bronx wasn't fun.

We often say that the earth is a sphere, but to be precise, the term sphere refers only to the surface. The correct mathematical term for the solid earth is a ball.

I was going to engineering school but fell in love with physics.

Science blogs bore me. When everyone is an expert, no one is an expert.

At some point we have to give up and say that's just the way it is. Or, not give up and push on.

Being me is no different than being most anyone else, I guess.

The first poems I knew were nursery rhymes, and before I could read them for myself, I had come to love just the words of them, the words alone.

A still small voice spake unto me, 'Thou art so full of misery, Were it not better not to be?

With death comes a choice. And death is a choice.

I'm not gonna be able to grow a beard. I've realized my limitations as a human.

The work on ants has profoundly affected the way I think about humans.

We've got the best product pipeline that I've seen in my 25 years at Apple.

Studies have been done showing that there really are gender differences, that women do bring more congeniality and compromise to the table.

I reckon that women looked their best at the turn of the century.

I am sometimes something of a lazy person, so when I end up spending a lot of time using something myself - as I did with Google in the earliest of days, I knew it was a big deal.