安全感就是能在小汽车的后座上睡觉。小时候，爸妈开车带你出门，到了晚上，你不知不觉在后座上睡着了……你啥都不用担心，爸妈就在前座上，他们负责忧虑一切……但是这样的时间很短暂，一不小心你就变成了那个坐在前面的成年人，而成年人永远失去了在后座睡觉的权利。

Every algorithm tells a story, a narrative of steps leading from problem to solution.

幸福就是珍惜那些自己觉得幸福的瞬间。

If you ask an economist what’s driven economic growth, it’s been major advances in things that mattered – the mechanization of farming, mass manufacturing, things like that. The problem is, our society is not organized around doing that.