数学不是关于数字、方程、计算或算法的：它是关于理解的。

中国学校的早自习

It's perhaps easier now than ever before to make a good living. It's perhaps harder than ever before to stay calm, to be free of career anxiety. I want to look now, if I may, at some of the reasons why we might be feeling anxiety about our careers. Why we might be victims of these career crises, as we're weeping softly into our pillows. One of the reasons why we might be suffering is that we are surrounded by snobs.

伟大的领导者不仅仅是管理；他们激励、鼓舞并提升周围的人。