War is a matter of vital importance to the state.
The business of a general is to kick away the ladder behind soldiers when they have climbed up a height.
Begin by seizing something which your opponent holds dear; then he will be amenable to your will.
He will win who, prepared himself, waits to take the enemy unprepared.
Opportunities multiply as they are seized.
If not in the interests of the state, do not act. If you cannot succeed, do not use troops. If you are not in danger, do not fight.