A mathematician is a person who can find analogies between theorems; a better mathematician is one who can see analogies between theories and the best mathematician can notice analogies between analogies.
数学家是能在定理间找到类比的人;更好的数学家能在理论间看到类比;而最优秀的数学家能注意到类比之间的类比。
解释:割地给秦国(来求得暂时的安稳),就好像抱着木柴救火一样,木柴烧不不完,火就不会灭。
Self-knowledge is the beginning of wisdom.
"There is no greater agony than bearing an untold story inside you."