administers a kingdom, being ignorant of the conditions which obtain in
an army. This causes restlessness in the soldier’s minds.
[Ts’ao Kung’s note is, freely translated: "The military sphere and the
civil sphere are wholly distinct; you can’t handle an army in kid
gloves." And Chang Yu says: "Humanity and justice are the principles on
which to govern a state, but not an army; opportunism and flexibility,
on the other hand, are military rather than civil virtues to assimilate
the governing of an army"—to that of a State, understood.]