Here is a wonderful article by John Tierney in the New York Times.
So often, people with AD/HD struggle with impulsivity.  Mr. Tierney talks about balancing this trait with persistence and by connecting what you do to the larger world.

Important line pertinent to those with AD/HD: “To succeed, you want to be able to regulate your impulses while also having the imagination to see what the future would be like if you tried something new.”