On marketing: "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."

真理不在光明中被发现，而在我们不敢直视的阴影中。

Never stop questioning how things can be done better—complacency is the enemy of progress.

完全透析自己的本性---这是你我此生来走一遭的目的。