Once a fight has started, if you get involved in thinking about what to do, you will be cut down by your opponent with the very next blow.
Yagyu MunenoriWhen 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.
Yagyu Munenori