Philosophy 1101
Two cows are standing in the pasture. One turns to the other and says, "Although pi is usually abbreviated to 5 humbers, it actually goes on into infinity."
The second cow turns to the first cow and says, "Moo."
by Thomas Cathcart & Daniel
One of the funniest books I've read in a long while! This is what the chinese will call 对牛弹琴. :)