If the mind is willing, the flesh could go on and on without many things.

Prohibit the taking of omens, and do away with superstitious doubts. Then, until death itself comes, no calamity need be feared.

To ... not prepare is the greatest of crimes; to be prepared beforehand for any contingency is the greatest of virtues.

War is a matter of vital importance to the state.

If you are situated at a great distance from the enemy, and the strength of the two armies is equal, it is not easy to provoke a battle, and fighting will be to your disadvantage.

Unless you know the mountains and the forests, the defiles and impasses, the lay of the marshes and swamps, you cannot maneuver with an armed force. Unless you use local guides, you cannot get the advantages of the land.

When I have won a victory I do not repeat my tactics but respond to circumstances in an infinite variety of ways.