I’m not going to swim for anybody else. I’m swimming for me.

It is not from the benevolence of the butcher， the brewer， or the baker that we expect our dinner， but from their regard to their own interest.

翻译：探索深奥的道理，揭示隐微的事理，钩取深处的义理，使人获得深远的教益。

Sustainability is not a choice; it's our responsibility to future generations.