A mind free from cares and fears is needed to experience true happiness.
需要一颗没有烦恼和恐惧的心才能体验真正的幸福。
The essence of science is not to complicate the simple, but to simplify the complex.
如果你想变得聪明,你需要不断问的问题是‘为什么,为什么,为什么?’