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?

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.

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

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.

You cannot ask questions about your purpose from to other people

Mankind is one human family.

The spirit of gratitude is definitely one of the main keys to happiness and constant growth. Every blessing needs to be celebrated and transformed into a motivation for more blessings.

I don't run democracy. I train troops to defend democracy and I happen to be their surrogate father and mother as well as their commanding general.

I have two beautiful children and my husband. The perfect day for me is just to be with them and have fun. We like simple things, you know.

I began demonstrating against serious culture. In hindsight, the actual course of events has been very humiliating for me, because no one picked up on the intellectual critique I made.

You have never lost money in stocks over any 20-year period, but you have wiped out half your portfolio in bonds (after inflation). So which is the riskier asset?

History is sympathetic to its authors.

Hope died as I was led unto my marriage bed.

Never Refuse Wine. It is an odd but universally held opinion that anyone who doesn't drink must be an alcoholic.