“I think that's the single best piece of advice: constantly think about how you could be doing things better and questioning yourself.”

“It's not as though we can keep burning coal in our power plants. Coal is a finite resource, too. We must find alternatives, and it's a better idea to find alternatives sooner then wait until we run out of coal, and in the meantime, put God knows how many trillions of tons of CO2 that used to be buried underground into the atmosphere.”

“Great companies are built on great products.”

“I had so many people try to talk me out of starting a rocket company, it was crazy.”

“I've been to Disneyland, like, 10 times. I'm getting really tired of Disneyland.”

“In the Greek cities, it was reckoned profane, that any person should pretend a property in a work of art, which belonged to all who could behold it.”

“Education is here placed among the articles of public care, not that it would be proposed to take its ordinary branches out of the hands of private enterprise, which manages so much better all the concerns to which it is equal, but a public institution can alone supply those sciences which, though rarely called for, are yet necessary to complete the circle, all the parts of which contribute to the improvement of the country, and some of them to its preservation.”

“Honesty and interest are as intimately connected in the public as in the private code of morality.”