鱼相忘于江湖，人相忘于道术。
鱼在江湖中互相遗忘，人在道术中互相遗忘。
希望是一个卷起袖子的动词。
我没有任何特别的秘诀（用于开发新的证明）……这就是为什么做研究既具有挑战性又具有吸引力的原因。这就像在丛林中迷路，试图利用你能收集到的所有知识来想出一些新的技巧，并且如果运气好的话，你可能会找到出路。
I don't have any particular recipe [for developing new proofs] ... It is the reason why doing research is challenging as well as attractive. It's like being lost in a jungle and trying to use all the knowledge that you can gather to come up with some new tricks, and with some luck you might find a way out.
社会系统是个人与个人之间、群体与群体之间关系的网络。
写作就是留下痕迹，留下痕迹，说“我曾在这里”。