Uncertainty is not the absence of information, but the presence of too much conflicting information.

Strength does not come from physical capacity. It comes from an indomitable will.

每一次失败都是通往成功的垫脚石；拥抱它并成长。

有时我们测量事物，看到它们在短期内实际上会损害销售，我们仍然会这样做。