The price one pays for pursuing any profession, or calling, is an intimate knowledge of its ugly side.

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

格瓦拉写在古巴革命胜利后

当且仅当所有投资者都持有均值-方差有效的投资组合时，市场组合才是有效的。

艺术的目的是让舒适的人不安，让不安的人舒适。