Dare Mighty Things
The first images of Curiosity on Mars are coming in. When you see them, consider the massive challenge of building a robotic car, tucking it neatly on top of a large container of explosives, launching it off one rock speeding through space, getting it to another speeding rock, landing it gently on said rock, and having it radio back digital images to confirm it has arrived safely.
Then remember these images when people say something is impossible. Remember what we can do when we dare mighty things.