不管别人怎么说，文字和语言的确能改变世界。
No matter what anybody tells you,words and ideas can change the world.
Profitability and responsibility must go hand in hand.
Nature tends to produce constancy in all her works, but she does not always succeed.
唯一能带给你幸福的是你自己。
Government, even in its best state, is but a necessary evil; in its worst state, an intolerable one.
Sustainability isn't an option; it's our responsibility to future generations.