最危险的敌人往往是我们自己。
The most dangerous enemy is often ourselves.
量化金融最重要的教训是，你必须理解模型的局限性。
Quality is not an act, it is a habit.
To make something good， just do it. To make something great， just re-do it， re-do it， re-do it. The secret to making fine things is in remaking them.
快乐是生活的关键。没有快乐，你就一无所有。