人应该谦卑地面对自然。

书是一个小小的奇迹。

Markets are efficient enough that most investors will not outperform the market over the long term.

The scientific study of behavior must be based on objective, measurable data.

控制的目的是使系统在存在不确定性和干扰的情况下仍能按期望的方式运行。