交换、交易和互换的倾向普遍存在于所有人之中，而在其他动物种族中找不到。
The secret to living is giving.
The meaning of life is to find your gift. The purpose of life is to give it away.
我们必须从一开始就考虑产品的生命周期终结问题。
It took untold generations to get you where you are. A little gratitude might be in order. If you're going to insist on bending the world to your way, you better have your reasons.
预测未来的最好方法就是发明它。
Sustainability is not just a buzzword; it's a responsibility we owe to future generations.