我们今天种下的每一粒种子都是对后代的承诺。

心理学唯一有效的数据是受过训练的观察者的报告。

I'm not afraid to fail. I'm not afraid to take risks.

The poverty of our century is unlike that of any other. It is not, as poverty was before, the result of natural scarcity, but of a set of priorities imposed upon the rest of the world by the rich.

But the old man thought only of his steering and his great tiredness. He had gone out too far and the sharks had beaten him. He knew they would leave him nothing but the stripped skeleton of his great catch.

The only way to grow is to challenge yourself.

能量守恒定律是经验结果的概括。