[TOMT] Poem or quote about teachers

I'm trying to remember this poem/quote about how important teachers are. It starts off by asking the reader to name a Nobel Prize winner and an Olympic gold medal winner (which is supposed to be difficult to remember). It then goes on to ask the reader to remember the names of 2 of his or her school teachers (which is supposed to be easy to remember). It is basically is trying to prove that we don't remember the people who win big prizes, but we remember those who make a big impact on us personally. Any ideas? Google hasn't been helpful.

Thanks guys!