“The principles are exactly the same as those of QED: everything is built out of propagators, vertex diagrams, and coupling constants. But there are new actors and whole new plot lines, including one called QCD.” — Leonard Susskind Copy Share Image
“Dick Feynman was a genius of visualization (he was also no slouch with equations): he made a mental picture of anything he was working… — Leonard Susskind Copy Share Image
[Richard Feynman] truly believed that if you couldn't explain something simply, you didn't understand it. — Leonard Susskind Copy Share Image
The word 'universe' is obviously not intended to have a plural, but science has evolved in such a way that we need a plural… — Leonard Susskind Copy Share Image
Science to me is sufficiently weird and interesting, and stranger than fiction. — Leonard Susskind Copy Share Image
I have always enjoyed explaining physics. In fact it's more than just enjoyment: I need to explain physics. — Leonard Susskind Copy Share Image
“The great tragedy of science—the slaying of a beautiful hypothesis by an ugly fact.” — THOMAS HENRY HUXLEY” — Leonard Susskind Copy Share Image
Space can vibrate, space can fluctuate, space can be quantum mechanical, but what the devil is it? And, you know, everybody has their own… — Leonard Susskind Copy Share Image
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… — Leonard Susskind Copy Share Image
I went to college because my father thought that I should learn engineering, because he wanted to go into the heating business with me.… — Leonard Susskind Copy Share Image
The dark energy is not exactly zero, but the first 122 decimal points are zero. That's crazy. That is really one of the craziest… — Leonard Susskind Copy Share Image
Eventually, when the universe expands enough, all that will be left is the dark energy. — Leonard Susskind Copy Share Image
I was from a poor Jewish family in the South Bronx. My father was a plumber, but when I was 16, he got sick… — Leonard Susskind Copy Share Image
![“[Richard Feynman] truly believed that if you couldn't explain something simply, you didn't understand it.” quote by Leonard Susskind](https://sms4smile.com/quotes/img-quotes/5c6/leonard-susskind-13115_feynman_richard-feynman-truly-believed-that-if-y_90317.jpg)
