人生起落无常，低谷时别放弃。  

The key to successful investing is to have a long-term perspective and to stick to your strategy.

永远忠于自己和你的热情。

不要为成功而努力，要为做一个有价值的人而努力。

A proof of a proposition is a process the nature of which is such as to produce in us a belief in that proposition.

爱是最强烈的关注形式。