技术只有被使用它的人使用才有用。
最好的肥料是农民在田地上的身影。
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."
检验一个假设的唯一方法是寻找所有反对该假设的信息。