The true investor scarcely ever is forced to sell his shares, and at all other times he is free to disregard the current price quotation.

数学不仅仅是抽象理论的集合，而是描述宇宙的语言。

客户满意度毫无价值，客户忠诚度才是无价的。

心理学的真理是帮助我们驾驭现实的东西。