如果你觉得失去了一切，请记住，树木每年都会落叶，但它们依然挺立，等待更好的日子。

Suffering! We owe to it all that is good in us, all that gives value to life; we owe to it pity, we owe to it courage, we owe to it all the virtues.

我们正在进入一个生物科学将主导知识领域的时代。