The world is a dangerous place, not because of those who do evil, but because of those who look on and do nothing.

最好的领导者是那些为他人服务的人。

The only way to learn mathematics is to do mathematics.

交易的关键是没有自我。

The man who writes about himself and his own time is the only man who writes about all people and about all time.

For a company to grow, food safety must be the top priority.