父子之间要亲爱,君臣之间要有礼义,夫妇之间要挚爱但还要有内外之别,老少之间有尊卑之序,朋友之间要有诚信之德。
"Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding."
Feminism is not a stick with which to beat other women with. It's about freedom, it's about liberation, it's about equality.