今天是教師節，這里分享一下美國數學(xué)會(huì )曾經(jīng)分享的數學(xué)滑稽網(wǎng)頁(yè)——數學(xué)教授語(yǔ)錄（Math Professor Quotes， http://mathprofessorquotes.tumblr.com）。
這里分享一下我們口耐的數學(xué)教授們上課期間的一些代表性的語(yǔ)錄——當然，有的可能有點(diǎn)雷，不喜誤入！
“I teach calculus for money, I research algebra for my soul”
— Calculus professor
“我教微積分是為了掙錢(qián)，我研究代數是為了我的心靈?！?br>—— 微積分教授
“It’s a game, see? I give you an epsilon, and you have to find the N! It’s a very fun game, I promise.”
— Real analysis professor
“這是一個(gè)游戲，看著(zhù)？我給你一個(gè)ε，你得去找一個(gè)N！這游戲非常好玩，我保證?！?br>—— 實(shí)分析教授
“There are no earthquakes in geometry.”
— Geometry professor
“幾何里沒(méi)有地震?！?br>—— 幾何教授
“Zero is never invited to the eigenvector party.”
— Linear algebra professor
“零從來(lái)不會(huì )被邀請參加特征向量聚會(huì )?！?br>—— 線(xiàn)性代數教授
“One of you answered a problem on the test with ‘Only god knows this.’”
— Statistics professor
“你們中有個(gè)人在考試中這樣答題的：‘天才知道?！?br>—— 統計學(xué)教授
“A differential equation is something with a lot of x’s.”
— Differential equations professor
“微分方程就是某種包含一堆x的東西?！?br>—— 微分方程教授
“This isn’t mathematics, this is theology.”
— Number theory professor
“這不是數學(xué)，這是神學(xué)?！?br>—— 數論教授
“A problem being in NP doesn’t mean that the problem is hard. It just means that it’s slightly not easy.”
— Computer science professor
“一個(gè)問(wèn)題是NP問(wèn)題并不是說(shuō)這個(gè)問(wèn)題很難，只是說(shuō)這個(gè)問(wèn)題有點(diǎn)不太容易?！?br>—— 計算機科學(xué)教授
“A way to define natural numbers is by rocks–if you have that number of rocks, you have a natural number.”
— Discrete math professor
“一種定義自然數的辦法就是用石頭——如果你有了一堆石頭，你就有了一個(gè)自然數?！?br>—— 離散數學(xué)教授
“When a ball is a cube, Paris is in Belgium.”
— Logic professor
“如果球是方的，巴黎就是比利時(shí)的?！?br>—— 邏輯學(xué)教授
“Love is NOT a symmetric relation.”
— Combinatorics professor
“愛(ài)情真不是對稱(chēng)關(guān)系?！?br>—— 組合學(xué)教授
“This is the kind of thing you think about for ten minutes and then say, “Yes, it’s obvious.””
— Graph theory professor
“這種事你思考了10分鐘，然后說(shuō)：‘是的，那是顯然的?！?br>—— 圖論教授
“Whenever you make a sign mistake, you can say “Oh, but I meant modulo 2.””
— Abstract algebra professor
“無(wú)論何時(shí)你符號寫(xiě)錯了，你都可以說(shuō)：‘哎呀，我的意思是模掉了2?！?br>—— 抽象代數教授
“It’s really easy to do math, you just have to know how to draw parabolas and potatoes.”
— Topology professor
“做數學(xué)真的很容易，你只需要知道怎么畫(huà)拋物線(xiàn)和土豆就行了?！?br>—— 拓撲學(xué)教授
“It’s algebra, so it’s a little messy.”
— Algebraic topology professor
“那是代數，所以那有點(diǎn)凌亂?！?br>—— 代數拓撲教授
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