The most important principle of positive psychology is that other people matter.
积极心理学最重要的原则是：他人很重要。
The world is a place of infinite complexity, and we are all just trying to make sense of it.
人分这么几种：不认识，认识，熟人，朋友，知心朋友。朋友不在当面表白，而是背后说起朋友的时候，是否提到过你。
We cannot choose the times, but we can choose how to respond to them.
