If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.

Probability theory is nothing but common sense reduced to calculation.

文明被描述为对一系列挑战的回应结果，而其中最大的挑战始终是气候。

The question isn't who is going to let me; it's who is going to stop me.

文学是一面镜子，不仅反映社会，还映照人心的深处。

世间没有什么能抵消春天的忧愁，不如对着苍天痛哭一场作罢。

在为增加粮食生产的机构和为控制人口的机构联合起来共同努力之前，抗击饥饿的斗争不可能取得永久性进展。