我现在承担了一项严肃的任务，恐怕这是一项在给定时间内任何人都无法完成的更艰巨的任务——但现在已经来不及回头了。

If you lose or forget to bring a cable，adapter or charger，check with your hotel. Most hotels now have a drawer full of cables，adapters and chargers others have left behind，and probably have the one you are missing. You can often claim it after borrowing it.

君子不是生来就比普通人高明，而是因为他们善于借助外物的力量，为自己所用。善于运用外在条件来弥补自身的不足，也是制胜之道。

The most beautiful thing in mathematics is the simplicity of the ideas behind the complexity.

智能化不是替代人，而是让人从繁重劳动中解放出来。

If it doesn't challenge you, it won't change you.