I love how David Macaulay in this 2002 TED talk reconstructs how he worked out his book Rome Antics. I wish more people did this: So much of our work -- intellectual work -- with its seemingly random explorations, horrible missteps, beautiful tangents, self doubts and sublime flow is invisible and when it is visible the sights are no more than shadows. No wonder my kids would rather be dirt bike racers and spys. (Then again, sometimes, so would I.) So, watch David Macaulay's talk with your kids.