Sun Tzu, a native of Qi Guole'an (now Shandong Huimin), his "Sun Tzu's Art of War" is recognized as the oldest military theoretical work in the world. "Good war" is the core of his military thought. No fame, no bravery. "Because in his view, the victory of a true warrior is by no means the kind of killing a thousand people, self-damaging eight hundred bloody hard battles, and fighting fiercely, but" is better than easy "One by one is the enemy that is easy to fight. The" victor who has lost "-the enemy who is already in a losing position. What is the core of Sun Tzu's war-fighting thoughts in this passage? ['Win a big victory for a small price.', '"Bad soldiers without war".', 'Simple military dialectics.', 'Except for "Total Victory", it means "To Win".']