The most important thing in mathematics is to understand the concepts, not just to memorize formulas.

Of all men's miseries the bitterest is this: to know so much and to have control over nothing.

历史的塑造现在超过了人们根据珍视的价值观来定位自己的能力。哪些价值观？即使没有恐慌，人们也常常感觉到旧的感觉和思维方式已经崩溃，而新的开始模糊到道德停滞的地步。

To lead is to serve. A true leader puts the team's growth above personal achievements.

你比你想象的更有价值。