To foster the people's willing spirit is often as important as to possess the more concrete forms of power.
B. H. Liddell HartWhile hitting one must guard ... In order to hit with effect, the enemy must be taken off his guard.
B. H. Liddell HartFor if we merely take what obviously appears the line of least resistance, its obviousness will appeal to the opponent also; and this line may no longer be that of least resistance. In studying the physical aspect, we must never lose sight of the psychological, and only when both are combined is the strategy truly an indirect approach, calculated to dislocate the opponent's balance.
B. H. Liddell Hart