The roots of education are bitter, but the fruit is sweet.
教育的根是苦的,但果实是甜的。
The most sustainable forest is one that's valued by the community that depends on it.
物理是思想的框架……追索到事情的本质,再从那里思考下去。
研究学习的唯一有意义的方法是通过客观测量。
《诗经》说:“茂盛的桃树开着鲜艳的花朵,这位姑娘出嫁了,能与婆家和睦相处。”