A human being needs to suffercWhen one suffers, one becomes strong.
农民的智慧往往来自观察土地在不同季节的教诲。
The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'
成功的最好方法是相信自己。
真相很少是纯粹的,也从来不是简单的。