I think a gentleman is someone who holds the comfort of other people above their own. The instinct to do that is inside every good man, I believe. The rules about opening doors and buying dinner and all of that other 'gentleman' stuff is a chess game, especially these days.
Whenever I've been stuck on a project, it's always brought me solace to the return to books that moved me in the past. It's a nice way to get outside my own head; and it brings me back to one of the most important reasons I write at all: to bring some pleasure to readers, to make them think or feel.