Where can I find all the "I've learnt something today"(southpark) statements?

at the end of every episode of southpark as a 'moral of the episode' some member of the series (especially Kyle) says a statement "you know what, I've learnt something today......", these statements are really worth pondering and moral...that's a very important part of the series which converts the otherwise cheap comedy into a sensible and humorous satire!