My favorite statement on humility is a bit off the beaten path. I can't recall the exact quote, so I'll briefly explain the thought. Hopefully well:

True humility isn't about bringing yourself down. It's about knowing the truth about your greatness. When we get big headed about how wonderful we are that it blinds us to the greatness in others we are not being humble. We are all great in our own ways, the key to humility is still appreciating the greatness in others.