世界是一面镜子，我们在其中看到我们自己。
The world is a mirror, and we see in it what we are.
The purpose of a habit is to remove that action from self-negotiation. You no longer expend energy deciding whether to do it. You just do it. Good habits can range from telling the truth， to flossing
Technological progress should make life simpler, not more complicated.
过去在我心中跳动，就像第二颗心。
Men and women differ in their reproductive strategies because they have faced different adaptive problems throughout evolutionary history.