I want to read a biography (or auto-bio) to inspire me... does anyone have any recommendations?

To elaborate... I really want to read Sharon Osbourne's auto-bio so that's already on my list and I've read Einstein's (great btw). Also, just for your information I'm graduating on May 5th this year (2011 ) with a bachelor's degree in Philosophy and a minor in Legal Studies!!! (If that helps with recommendations). Anyways, I have a year off (and get to work as a private investigator during that time) and want to read as much as possible! Preferably inspiring and just really good to read books to get absorbed in. Any good recommendations will be considered! I just thought this would be a good place to ask. Thanks! -C