Neil Gaiman: “You get work however you get work, but keep people keep working ... because their work is good, because they are easy to get along with and because they deliver the work on time. And you don’t even need all three! Two out of three is fine. People will tolerate how unpleasant you are if your work is good and you deliver it on time. People will forgive the lateness of your work if it is good and they like you. And you don’t have to be as good as everyone else if you’re on time and it’s always a pleasure to hear from you."
Or tweetable: "Pleasant. On time. Talented. Success requires two out of three."
And then there's the Iron Triangle of Project Management: "Fast - Cheap - Good. Pick Two."
Words of wisdom.