From Hanna Arendt's Introduction to Politics: "...Thaumadzein [is] the wonder at that which is as it is.. As far as philosophy is concerned, if it is true it begins with wonder, with thaumadzein." With that in mind, and it should never leave the mind, watch this YouTube video, which appeared on Ezra Klein's blog:

That boy's wonder is the root of all philosophy. It begins there and does not stop until the philosopher's life stops.