A true opponent will instill in you a lot of courage (Kafka) If a person can discover the strengths of his opponent, it will bring immeasurable huge benefits to him, because this will definitely giving him an edge over his opponents. --Goethe was unable to control his family when he entered, but was invincible to foreign patients when he came out, and the country was permanently destroyed. --Mencius knew the poisonous weeds, which was equivalent to finding a good medicine; seeing the enemy clearly was equivalent to finding a teacher.

(Tibetan