一个好的数学家是能看到定理之间类比的人;一个伟大的数学家是能看到类比之间的类比的人。
书籍是我们能送给孩子的最珍贵的礼物。
To love is to risk everything, but to not love is to risk even more.
"The past is always present, whispering in our ears, shaping our steps."