What do we really understand...?

I saw this somewhere on-line and thought it was interesting enough to post. It's so true. I'm sure I can rattle off a few similar things but I still need to look up a birthday, a phone number or something equally as significant. I just thought it was extra interesting since I'm not really sure what the spleen does either... Besides, it made me laugh out loud!

I couldn't link to the original source since I couldn't determine where it was. It seemed to be linked a few times, I'll have to ask Bobby I guess...