主题：推荐一篇文章给想要献身科学事业，或者正在献身的人们 -- fengshui

这算是个古老的笑话了，最初流传于1998-1999年，10年之后再看一遍，仍然觉得是不胜唏嘘啊。

A rabbit is happily grazing one day when it is ambushed by a wolf.

"Please don't eat me Mr Wolf," pleads the rabbit, "I haven't completed my Ph.D.!"

The wolf spits out the rabbit and laughs until he almost chokes.

"Yeah right! A rabbit? Doing a Ph.D.? What about? Carrots? Duracell batteries? I just gotta hear this one!"

The rabbit clears its throat and intones: "On the innate superiority of rabbits over wolves."

"That's a crock for a start," scoffs the wolf.

"But I can prove it," says the rabbit. "Come to my hole and I'll show you my results, and if you still don't believe me, then you can eat me. Deal?"

"Sure. Can I have fries with that?" says the wolf, following the rabbit down the hole.

But only the rabbit comes out.

Months later the rabbit is grazing contentedly again when it meets another rabbit.

"How's tricks?" asks the friend.

"Wonderful," says our hero, "I've just submitted my Ph.D. dissertation."

"Congratulations! What's it called?"

"It's called 'On the innate superiority of rabbits over wolves'."

"Unbelievable — I mean, literally. Are you sure?"

"Yes, I thought it was crazy at first too. But I've tested the model rigorously and that's the result I get."

"Wow..."

"Look, if you don't believe me, why not come to my hole and I can show you the results?"

"Of course, I'd love to!"

So the two rabbits scurry down the burrow. In the first chamber is a workstation, covered with and surrounded by piles of books, papers, printouts and half-eaten carrots. In the second chamber are boxes and boxes of wolf bones, all catalogued and annotated. And in the final chamber, in a rocking chair, is a large and very satisfied looking bear.

Moral: do your Ph.D. on any subject you like, provided you have a good supervisor.