成功交易的关键是知道何时买入和何时卖出。

"Words have weight, and writers must bear the responsibility of that weight."

Mental processes evolved to solve practical problems.

Success is measured not just by profits, but by the positive impact we create.

He who is not a good servant will not be a good master.

不要被他人的意见所影响。

The ideas of economists and political philosophers， both when they are right and when they are wrong， are more powerful than is commonly understood. Indeed the world is ruled by little else. Practical men， who believe themselves to be quite exempt from any intellectual influence， are usually the slaves of some defunct economist.