Efficiency is doing things right; effectiveness is doing the right things.
预测未来的最好方式就是创造未来。
天堂的合唱队和地球上的一切物质——总之,构成世界的所有物体——都没有存在,没有心灵。
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."