Sun Who? Hundreds of years before the common era, there was a period in China known as the Age of Warring States (475–221 BCE). This was an age of great conflict and uncertainty as seven states fought for survival and control of China. For these states to win they pursued any means of gaining advantage over their opponents; knowledge of strategy and leadership was especially sought after. During this time a general from the state of Ch’i known as Sun Tzu is included in the historical records. His ability to win victories gained him respect and students who wanted to follow his way. To share the hard-won wisdom he had earned from his years of battles Sun Tzu wrote The Art of War, an essay that became a classic work of philosophy, not just for warriors but also for business and service careers in China and around the world.
If you know others and know yourself, you will not be imperiled in a hundred battles; if you do not know others but know yourself, you win one and lose one; if you do not know others and do not know yourself, you will be imperiled in every single battle.--Sun Tzu