Never underestimate the power of a well-designed experiment.

The greatest glory in living lies not in never falling, but in rising every time we fall.

是不失败,其次则是败了却还有办法成功,这才叫善于用人。

I’m a normal guy who just happens to play tennis very well.

最好的故事不会居高临下地对孩子说话，而是邀请他们进入。