The key to good design is understanding forces.
The truth is a slippery thing, especially in the dark.
品格是在没人看的时候做正确的事。有太多人认为唯一正确的事是蒙混过关，而唯一错误的事是被抓住。
Positive emotions broaden our awareness and encourage novel, varied, and exploratory thoughts and actions. Over time, this broadened behavioral repertoire builds skills and resources.
