"The power of words is immense, but it is also fragile and easily misused."

The advancement of mathematics is through generalization.

义理（思想内容）、考据（文献考证）、辞章（文辞表达）三者缺一不可。

正派人的话，明明知道了为了我好，内心感激却未必高兴；奸邪人的话，明明知道是在奉承我，但听着十分顺耳，所以未必生气。由此可知听取忠言是多么艰难。

Those who do not have power over the story that dominates their lives, the power to retell it, rethink it, deconstruct it, joke about it, and change it as they change, truly are powerless, because they cannot think new thoughts.