Whatever your determination or will power, it is foolish to try to change the nature of things. Things work the way they do because that is the way of things

The spirit of defeating a man is the same for ten million men. The strategist makes small things into big things, like building a great Buddha from a one foot model.

You should not have a favourite weapon. To become over-familiar with one weapon is as much a fault as not knowing it sufficiently well.

If you do not control the enemy, the enemy will control you

If the enemy thinks of the mountains, attack like the sea; and if he thinks of the sea, attack like the mountains.

The important thing in strategy is to suppress the enemy's useful actions but allow his useless actions

Know your enemy, know his sword.