The only way to be truly satisfied is to do what you believe is great work.

The past is always there, and it's always different every time you look at it.

A society that does not recognize the rights of its citizens is doomed to decay.

一个人的幼儿时期，其实就是一种不断习得能力的过程，这个周期性的刺激，将带给儿童无限的欢乐和乐趣。