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

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

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

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?

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

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.

I did not come from an academic background. My father was a smart man, but he had a fifth-grade education. He and all his friends were plumbers. They were all born around 1905 in great poverty in New York City and had to go to work when they were 12 or 13 years old.