The magic number 150 suggests that the size of our social networks is limited by the size of our brains.

A masterpiece isn't created, it's discovered within the artist's soul.

真正的艺术家并不骄傲：他知道艺术是无限的，他觉得自己离目标还很远。

So what I want to argue for is not that we should give up on our ideas of success, but we should make sure that they are our own. We should focus in on our ideas, and make sure that we own them; that we are truly the authors of our own ambitions. Because it's bad enough not getting what you want, but it's even worse to have an idea of what it is you want, and find out, at the end of the journey, that it isn't, in fact, what you wanted all along.

In mathematics, as in life, the most profound discoveries often come from asking the simplest questions.

The best time to plant a tree was 20 years ago; the second-best time is now.