唯一的限制是你为自己设定的限制。

The study of mathematics is a constant dialogue between the concrete and the abstract.

We are all walking around with an evolutionary user's manual in our heads, but most people don't realize it.

I'm only rich because I know when I'm wrong... I basically have survived by recognizing my mistakes.

There is no history except as it is composed.

你通过浏览的内容影响世界。

生活中最重要的不是征服，而是要战斗得好。