"Keep your head down and your back straight. People must have self-knowledge, but also know how to learn from others' strengths to make up for their weaknesses. More important than talent and ability are humility. In this world, the person who can control the overall situation is often not the person with the best technology and the most ability, but the person who can tolerate people and knows how to bow at the right time. People who are truly generals know how to bow their heads to those who are better than themselves. "The way of heaven and earth, the mutual use of rigidity and softness should not be neglected. Over softness will lead to sluggishness, and over rigidity will lead to failure." When it is time to bow your head, it is not shameful to admit the excellence of others. Arrogance is true ignorance. If you bow your head to someone better than yourself, you must be a person with a strong heart."