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."
在旧的世界里，你用30％的时间创建一种伟大的服务，用70％的时间来营销。在新的世界里，这个比例应该倒过来。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法的：它是关于理解的。
It is a curious subject of observation and inquiry, whether hatred and love be not the same thing at bottom.
To say goodbye is to die a little.
我们靠获得的东西生存。但我们靠给予的东西生活。