Comics legend Alan Moore (Watchmen, From Hell, League of Extraordinary Gentlemen) has a writing tutorial now on BBC Maestro, which looks absolutely fantastic. Moore is an expert at weaving together numerous characters and overlapping dramatic arcs inside complex and frequently historical settings while still maintaining clarity and momentum. Not an easy feat.
On top of that, he wants to focus not just on mechanics, but the larger picture. Namely: What can writing accomplish?
You should remember that a writer can change the world. Think of the books that have completely changed human history. See yourself in that light. Because if you are a writer, then you are having an effect upon human history…
Aim big.