If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat. If you know neither the enemy nor yourself, you will succumb in every battle… The Art of War is an ancient Chinese military treatise attributed to Sun Tzu (544-496 BCE) that has influenced warfare and business. Discover it in this classical Lionel Giles translation (1910) with the original comments and footnotes prepared for a better reading experience.