Your most unhappy customers are your greatest source of learning.

在别人家住的太久了，人就变得不再尊贵，来往太频繁了，亲密的程度就会下降。

No matter what he does, every person on earth plays a central role in the history of the world. And normally he doesn't know it.

最艰难的决定往往需要在短期收益和长期影响之间取得平衡。

The past is always tense, the future perfect.

To make mistakes is human. To own your mistakes is divine. Nothing elevates a person higher than quickly admitting and taking personal responsibility for the mistakes you make and then fixing them fairly. If you mess up， fess up. It’s astounding how powerful this ownership is.