成为你希望在世界上看到的变化。
这个世界是个美丽的地方，值得为之奋斗。
The test of our progress is not whether we add more to the abundance of those who have much; it is whether we provide enough for those who have too little.
Innovation is not about saying yes to everything. It's about saying no to all but the most crucial features.
It goes against the grain of modern education to teach children to program. What fun is there in making plans, acquiring discipline in organizing thoughts, devoting attention to detail and learning to be self-critical?