把握你的20岁是为工作、爱情、幸福，甚至可能是为世界做的最简单但最具变革性的事情之一。
Claiming your 20s is one of the simplest, yet most transformative, things you can do for work, for love, for your happiness, maybe even for the world.
It's probably as unlikely that you would nowadays become as rich and famous as Bill Gates, as it was unlikely in the17th century that you would accede to the ranks of the French aristocracy. But the point is, it doesn't feel that way. It's made to feel, by magazines and other media outlets, that if you've got energy, a few bright ideas about technology, a garage -- you, too, could start a major thing.
Success is not just about what you achieve, but how you achieve it.
He who is not contented with what he has，would not be contented with what he would like to have.
"Writing is a way to make sense of our place in the universe."
Invert, always invert: Turn a situation or problem upside down.Look at it backward.
数学的本质在于它的自由。
任何圆的周长与其直径的比率小于3 1/7但大于3 10/71。