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

We cannot always assure the future of our friends, but we have a better chance of assuring our future if we remember who our friends are.

"The true value of science lies in its ability to change our perspective."

一本书必须是我们内心冰冻海洋的斧头。