"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

数学的历史是人类心灵独创性和创造力的证明。

The key to successful trading is to know when to buy and when to sell.

Mental phenomena can only be understood in terms of their consequences for action.

商业就像战争——你需要战略，但当事情出错时，你也需要适应。