[TNoldman]

I remember a “preposition” is a word not to end a sentence with.

[Erasmus]

So, the young George W Bush goes to Harvard. Arriving on the campus for the first time, he is strolling the Quad, and wants to find the library. He sees a nice young lady walking his way.

“Excuse me, ma’am but I’ve just arrived from Texas. Can you tell me where the library’s at?”

Her only response is a cold stare, and she walks on.

Now, young W spies a gentleman with a pipe, a bow tie, and a tweed jacket with leather elbow patches.

“’Scuse me professor, but could you kindly tell me where the library’s at?”

“Young man, at Hahvahd, we don’t end our sentences in prepostions.”

“Oh, I see. Well that case, could you tell me where the library’s at, butthole?”