牛、猪、战争和女巫：文化的谜题通过理解生活的物质条件而解决。

The one element which is of first importance in scientific management is the task idea.

Happiness is beneficial for the body, but it is grief that develops the powers of the mind.

Anything you say before the word “but” does not count.

最激动人心的发现往往来自于以全新的方式看待老问题。