Two of my favorites are from Sir Ken Robinson. In his first TED appearance, he said that schools kill creativity. My favorite quote from this one is: "My contention is that creativity now is as important in education as literacy, and we should treat it with the same status." But lots of what he says is great. Here, watch for yourself.
His second appearance at TED is entitled "Bring on the Revolution." This one had several memorable moments for me. The highlight for me, though, is this quote: "I came across a policy statement, very well-intentioned, which said, 'College begins in kindergarten.' No, it doesn't.... Kindergarten begins in kindergarten." Here's that presentation, full of great lines.
I think Sir Ken Robinson is one of my new heroes. I discovered some of his books, so those are probably leaping to the top of my list.
Check out other stuff on TED. You can get inspired by lots of different people.