“Too often we give children answers to remember rather than problems to solve.”

“His laws changed all of physics and astronomy. His laws made it possible to calculate the mass of the sun and planets. The way it's done is immensely beautiful. If you know the orbital period of any planet, say, Jupiter or the Earth and you know its distance to the Sun; you can calculate the mass of the Sun. Doesn't this sound like magic?We can carry this one step further - if you know the orbital period of one of Jupiter's bright moons, discovered by Galileo in 1609, and you know the distance between Jupiter and that moon, you can calculate the mass of Jupiter. Therefore, if you know the orbital period of the moon around the Earth (it's 27.32 days), and you know the mean distance between the Earth and the moon (it's about 200,039 miles), then you can calculate to a high degree of accuracy the mass of the Earth. … But Newton's laws reach far beyond our solar system. They dictate and explain the motion of stars, binary stars, star clusters, galaxies and even clusters of galaxies. And Newton's laws deserve credit for the 20th century discovery of what we call dark matter. His laws are beautiful. Breathtakingly simple and incredibly powerful at the same time. They explain so much and the range of phenomena they clarify is mind boggling. By bringing together the physics of motion, of interaction between objects and of planetary movements, Newton brought a new kind of order to astronomical measurements, showing how, what had been a jumble of confused observations made through the centuries were all interconnected.”

“If you want truly to understand something, try to change it.”

“Experience alone does not create knowledge”

“Every psychological event depends upon the state of the person and at the same time on the environment, although their relative importance is different in different cases”

“Why do we remember the Boys of Summer? We remember because we were young when they were, of course. But more, we remember because we feel the ache of guilt and regret. While they were running, jumping, leaping, we were slouched behind typewriters, smoking and drinking, pretending to some mystic communion with men we didn't really know or like. Men from ghettos we didn't dare visit, or rural farms we passed at sixty miles an hour. Loving what they did on the field, we could forget how superior we felt towards them the rest of the time. By cheering them on we proved we had nothing to do with the injustices that kept their lives separate from ours. There's nothing sordid or false about the Boys of Summer. Only our memories smell like sweaty jockstraps.”

“Buffett found it 'extraordinary' that academics studied such things. They studied what was measurable, rather than what was meaningful. 'As a friend [Charlie Munger] said, to a man with a hammer, everything looks like a nail.”