You are this, which does not satisfy, so you want to be that. If there were an understanding of this, would that come into being? Because you do not understand this, you create that, hoping through that to understand or to escape from this.
I never cheat or steal. Also, I never wear a top-hat with a sack coat or munch bananas in public on the streets, because a gentleman does not do those things either. I would as soon do the one as the other sort of thing--it is all a matter of harmony and good taste.
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.