Combinatorics is like the art of counting without actually counting.
心灵是一个不断变化的经验流。
In mathematics, the journey from confusion to clarity is the most rewarding experience.
关于教育的斗争不仅仅是经济和政治问题,还涉及民主的本质和未来的意义。
写作是一种孤独的修行。
The past is not dead; it is not even past.
我不知道我为什么爱你,但是我爱你。