The state of nature has a law of nature to govern it, which obliges every one: and reason, which is that law, teaches all mankind, who will but consult it, that being all equal and independent, no one ought to harm another in his life, health, liberty, or possessions.

Boys, you must strive to find your own voice. Because the longer you wait to begin, the less likely you are to find it at all. Thoreau said, "Most men lead lives of quiet desperation." Don't be resigned to that. Break out.

The general population doesn't know what's happening, and it doesn't even know that it doesn't know.

The true sign of intelligence is not knowledge but imagination.

幸运所需要的美德是节制，逆境所需要的美德是坚韧。

"You can't control everything, but you can control how you react to things."

现代物理学的挑战不仅在于找到答案，还在于提出正确的问题。