易涨易退山溪水，易反易复小人心。
译文：山间的溪水容易上涨和退却，小人的心思容易反反复复。赏析：君子胸怀坦荡，光明磊落，真诚待人，和君子相处，如沐春风，让人心旷神怡。而小人心胸狭窄，鸡肠鼠肚，睚眦必报，和小人交往，无异于和豺狼同行。
采矿业的未来在于创新和负责任的资源管理。
The only thing we have to fear is fear itself.
如果量子力学没有让你深感震惊，那说明你还没有理解它。
The true value of a tree isn't in its board feet, but in its roots and reach.
打字机要是敲得有感情，并不比你的姐妹或者亲戚弹奏钢琴来的扰人。
I stand up for what I believe in and I don’t worry about what other people think.