You have to fight through some bad days to earn the best days of your life

地图不是领土，但它是领土的指南。

The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.

创新不仅仅是关于技术；它是关于改变我们的生活方式。