有喜怒哀乐之情却没有发作，这是从凡人之心直接追溯到道德之心，使人们存心修养；虽未发生但却有喜怒哀乐的表现，这是由道心指出人心的缺欠，要人们反省改正。

True innovation happens when you step outside your comfort zone.

With a library you are free, not confined by temporary political climates. It is the most democratic of institutions because no one - but no one at all - can tell you what to read and when and how.

试管婴儿的研究是出于帮助不孕夫妇的愿望。

结婚这件事，所有女人的看法都一致，所有男人的看法都不同。