防民之口，甚于防川。川壅而溃，伤人必多，民亦如之。
解释：阻塞老百姓的嘴，好比阻塞河水。河流如果堵塞后一旦再决堤，伤人一定很多，人民也是这样。不可堵塞民众的言论，不给他们发表自己想法的机会。如这样去做，将比堵塞江河带来的后果更严重。
击败竞争对手的唯一方法是停止试图击败竞争对手。
In the old world, you devoted 30% of your time to building a great service and 70% of your time to shouting about it. In the new world, that inverts.
"Books are the most powerful weapons in the world."
The universe we observe has precisely the properties we should expect if there is, at bottom, no design, no purpose, no evil, no good, nothing but blind, pitiless indifference.
In economics, the devil is often in the details.
The future belongs to those who can bridge the gap between silicon and soul.