唯有浅薄的人需要用数年挣脱一种情感。一个人当得了自己的主人，便可轻易终结哀伤，轻易制造快乐。
It is only shallow peoplewho require years to get rid of an emotion. A man who is master of himself, can end a sorrow as easily as he can invent a pleasure.
创新既需要创造力，也需要严格的测试。
我从不认为任何事情是理所当然的。
The whole problem with the world is that fools and fanatics are always so certain of themselves， and wiser people so full of doubts.
In science, the most important discoveries often come from paying attention to the unexpected.
质量不是希望；它是一种结果。
行业与社区之间的合作是可持续林业的关键。