I've tried to be totally present, so that when I'm finished with a piece of work, I'm finished. ... The work, once completed, does not need me. The work I'm working on needs my total concentration. The one that's finished doesn't belong to me anymore. It belongs to itself.
Hence that general is skilful in attack whose opponent does not know what to defend; and he is skilful in defense whose opponent does not know what to attack.
Murder in the murderer is no such ruinous thought as poets and romancers will have it; it does not unsettle him, or fright him from his ordinary notice of trifles; it is an act quite easy to be contemplated.