What I want to talk to you about today is the difference between gifts and choices. Cleverness is a gift， kindness is a choice. Gifts are easy -- they're given after all. Choices can be hard. You can seduce yourself with your gifts if you're not careful， and if you do， it'll probably be to the detriment of your choices.
旅行就是写作，写作就是旅行。
The teacher should not teach as if he were pouring knowledge into an empty vessel, but rather as if he were lighting a fire.
我不相信传统意义上的和谐。我相信强度。
The best businesses don't just adapt to change—they drive it.
在没有其他信息的情况下，参数的最佳估计是其样本值。