The four most dangerous words in investing are: 'this time it's different.'

A great business at a fair price is superior to a fair business at a great price.

数学家的工作永无止境；总有更多的问题需要解决。

The only way to overcome fear is to face it.

客户满意度应该始终是每个决策的核心。

我不会限制自己，只因为人们不接受我可以做其他事情的事实。