"The only way to learn mathematics is to do mathematics."

最大的风险是不冒任何风险。在一个快速变化的世界里，唯一注定失败的策略就是不冒险。

一个没有书的房间就像一具没有灵魂的躯体。

The market is a pendulum that forever swings between unsustainable optimism (which makes stocks too expensive) and unjustified pessimism (which makes them too cheap). The intelligent investor is a realist who sells to optimists and buys from pessimists.

在数学中，提出问题的艺术必须比解决问题更有价值。