人们忘了告诉对方彼此的变化。

A person may cause evil to others not only by his actions but by his inaction， and in either case， he is justly accountable to them for the injury.

I don't spend my time pontificating about high-concept things; I spend my time solving engineering and manufacturing problems.

一个人的价值应该看他贡献了什么，而不是他能得到什么。