The training and improvement of labor are effective ways to increase productivity.

"Only the very weak-minded refuse to be influenced by literature and poetry."

数学不是关于数字、方程、计算或算法的：它是关于理解的。

当目标是取得有意义的进展时，合作胜过竞争。

爱自己，远离任何对你不利的事情。