剑鞘保护剑的锋利，自己却满足於它自己的迟钝。

程序最重要的属性是它是否实现了用户的意图。

人的状况...是一种每个人对每个人的战争状况。

My job as a leader is to make sure everybody in the company has great opportunities, and that they feel they’re having a meaningful impact and are contributing to the good of society.

The harder you work for something, the greater you’ll feel when you achieve it.