When you are young, you think that the world is a place where you can live as you choose. But as you get older, you realize that the world is a place where you have to live as you must.
年轻时，你以为世界是一个可以随心所欲生活的地方。但随着年龄增长，你意识到世界是一个你必须按照必须的方式生活的地方。
The most beautiful as well as the most ugly inclinations of man are not part of a fixed biologically given nature, but result from the social process which creates man.
The great question which, in all ages, has disturbed mankind, and brought on them the greatest part of their mischiefs, has been, not whether there be power in the world, nor whence it came, but who should have it.
Profitability and environmental responsibility are not mutually exclusive—they go hand in hand when done right.