There are 13 articles on Sun Tzu's Art of War. The first article is a plan, and the famous sentence is "Attack him unprepared and surprise him". It means to attack at an unexpected moment of the enemy. The second article is a combat article, and the famous sentence is "It is not expensive to win for a long time." It means that fighting lies in the pursuit of victory, not in protracted war. The third article is conspiracy to attack. The famous phrase "know yourself and know yourself" means that you know both the enemy and yourself, and there will be no danger in a hundred battles. The fourth is the form, and the famous sentence is "A good fighter is in an invincible position without losing the enemy's defeat". It means that people who are good at fighting always keep themselves in an invincible position, and at the same time don't miss any chance to defeat the enemy. The fifth article is a potential article, and the famous sentence is "All warriors win by surprise. In the battle of meaning, we always use "positive" soldiers to block the enemy and "odd" soldiers to win. The sixth chapter is the virtual and real, and the famous sentence is "the image of husband and soldier is water, the shape of water, avoiding heights and tending downwards;" The shape of a soldier, avoiding reality and attacking emptiness. Water flows because of the ground, and soldiers win because of the enemy. Therefore, the soldiers have no constant potential and the water is impermanent; He who can win because of the change of the enemy is called God. Therefore, the five elements are impermanent, the four seasons are impermanent, the days are short and long, and the months are dead and alive. "It means that the way of fighting is a bit like water. The law of water movement is to avoid heights and run down. The law of fighting is to avoid the enemy's solid places and attack the enemy's weaknesses. Water restricts its running direction because of the terrain, and the strategy of winning is determined according to the enemy's situation. Therefore, there is no fixed way to fight, just as there is no fixed form of water. Those who can win according to the changes of the enemy's situation are called fighting like gods. The law of using soldiers is like a natural phenomenon, in which water, fire, wood, gold and soil interact with each other; Spring, summer, autumn and winter alternate. Days are long and short, and the moon is full and short, which is always changing. The seventh article is about the military struggle, and the famous sentence is "the three armies can seize the air, but the generals can seize the heart." Therefore, the vitality is sharp, the daytime is lazy, and the twilight returns. Therefore, those who are good at using soldiers should avoid their spirit and beat them to the ground, which is also a cure for qi. Treat chaos by treating it, and wait for it by waiting for it. This is also the way to treat the heart. Treat the near as far as possible, treat the tired with care, and satisfy the hungry, which is also the rule. There is no need to straighten out the flag, don't hit the open Chen, and this is also the rule of change. "Meaning, therefore, for the enemy's army, can hit its morale, for the enemy generals, can shake his determination. Full of vitality in the morning, gradually slack off after noon, and tired and homesick in the evening. Therefore, people who are good at fighting should avoid the spirit of the enemy when he first went into battle and wait until the enemy is slack and tired. This is the way to master the morale of the army. Waiting for the enemy's hunger with their own troops' satiety is the way to master the combat effectiveness of the army. Don't stop the enemy with neat flags and well-equipped, and don't attack the enemy with magnificent lineup and powerful strength. This is the way to master mobile changes. The eighth chapter is nine changes, which is why the concerns of the wise will be mixed with interests. Miscellaneous and trustworthy; Miscellaneous in harm and suffering can be solved. A wise general must consider both advantages and disadvantages when thinking about problems. In unfavorable situations, we must see favorable conditions at the same time, and major events can be carried out smoothly; In favorable circumstances, we should see the unfavorable factors at the same time, and the disaster can be eliminated in advance. The ninth is the famous sentence of the marching article, "Therefore, it is necessary to make it in words and use force together." "the tenth is the terrain", knowing yourself and knowing yourself is invincible; Knowing heaven and earth, winning is complete. "The eleventh chapter is like a virgin, the enemy opens an account, and then it is like a rabbit, and the enemy can't refuse. The twelfth chapter is a fire attack." The Lord can't be angry and will not be able to fight. "The thirteenth is to use the interval", so the monarch is wise and the generals are wise, so he who wins by moving wins, and the success comes from many people, and the prophet also. Prophet, not desirable in ghosts and gods, not like things, not to measure, must take from people, who know the enemy's feelings.