The most important thing in mathematics is to understand the concepts, not just to memorize formulas.
"The truth is not always beautiful, but the pursuit of truth is always beautiful."
The good life is not one immune to sadness, but one in which suffering contributes to our development.
每个人都是天才。但如果硬要以鱼儿爬树的本领,来评估它的能力,它这辈子都会觉得自己是条蠢鱼。