Agriculture is the most honorable of professions, for it sustains life itself.
In business, you have to be willing to take risks, but they must be calculated risks.
投资者应避免试图把握市场时机;这是一个失败的游戏。
解析:知道自己还有所不知,这是很高明的。不知道却自以为知道,这就是很糟糕的。