Think wrongly, if you please, but in all cases, think for yourself.

The true measure of success is not just profit, but the positive impact we leave behind.

在数学中，最深刻的思想往往源于最简单的观察。

I am tomorrow, or some future day, what I establish today. I am today what I established yesterday or some previous day.

Concrete is the marble of our time, a democratic material.

当没有人相信你时，你必须相信自己。