War is a profession by which a man cannot live honorably; an employment by which the soldier, if he would reap any profit, is obliged to be false, rapacious, and cruel.

One should never risk one's whole fortune unless supported by one's entire forces.

Hence it comes that all armed Prophets have been victorious, and all unarmed Prophets have been destroyed.

Because there are three classes of intellects: one which comprehends by itself; another which appreciates what others comprehend; and a third which neither comprehends by itself nor by the showing of others; the first is the most excellent, the second is good, the third is useless.

The leader should know how to enter into evil when necessity commands.

The unarmed man is not just defenseless - he is also contemptible.

No proceeding is better than that which you have concealed from the enemy until the time you have executed it. To know how to recognize an opportunity in war, and take it, benefits you more than anything else. Nature creates few men brave, industry and training makes many. Discipline in war counts more than fury.