植物杂交实验需要最仔细的关注和极大的耐心。

数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。

选自汉·桓宽《盐铁论·相刺》。橘柚生长于江南，各地的人吃起来都有甜的感觉，这是因为大家的味觉是相同的；郑国卫国的音乐，大家都觉得好听，那是因为大家对声音效果的感受是相同的。这句话以吃橘柚的感觉与听音乐的感受为喻，说明是非好坏的标准是客观存在的，人类社会的价值认同大体是相同的。

That's exhilarating if you're doing well, and very crushing if you're not. It leads, in the worst cases -- in the analysis of a sociologist like Emil Durkheim -- it leads to increased rates of suicide. There are more suicides in developed, individualistic countries than in any other part of the world. And some of the reason for that is that people take what happens to them extremely personally -- they own their success, but they also own their failure.

渔民是我们的伙伴，他们的利益必须放在首位。