It's not only that I want to get things right when I'm composing but that my imagination often gets lost, and then I have to wait until I come back to the path. I think there's an internal force that makes a piece logical from beginning to end; I like to tell stories in music that are unexpected but also logical.
When you strike a blow, do not let your mind dally on it, not concerning yourself with whether or not it is a telling blow; you should strike again and again, over and over, even four or five times. The thing is not to let your opponent even raise his head.