人生冇如果，只有结果同后果。

The most important thing in investing is to know what you own and why you own it.

The essence of mathematics lies in its freedom.

The knowledge that you have emerged wiser and stronger from setbacks means that you are, ever after, secure in your ability to survive. You will never truly know yourself, or the strength of your relationships, until both have been tested by adversity. Such knowledge is a true gift, for all that it is painfully won, and it has been worth more than any qualification I ever earned.

To each appearance， as it arises， we should oppose the equal appearance.

在商业中，你必须愿意承担风险，但必须是经过计算的风险。