The secret of change is to focus all of your energy not on fighting the old, but on building the new.

The ability to imagine counterfactuals is what distinguishes humans from machines.

There is no easy walk to freedom anywhere, and many of us will have to pass through the valley of the shadow of death again and again before we reach the mountaintop of our desires.

子贡问：“孔文子凭什么获得‘文’的称号？”孔子说：“灵敏又好学，向比自己学问差的人请教时，不觉得没面子，所以称为‘文’。”

我不让任何人告诉我能做什么或不能做什么。