Immoral being

Zhang Li, second young master of the great Zhang family. Unlike his reliable and strong elder brother or his bright and tomboyish younger sister. He can not feel the exterior Qi. besides cultivating his body with his inner Qi he could only pursue knowledge. hoping to find ways to contribute to his clan. He shows no reaction, even when people express obvious disregard when he speaks. He believes it can't be helped since he has no great achievements. And decided not to voice his opinions until he does so, he buried himself even more in his studies. the always gentle, caring and lively youth now rarely leaves his room Until he chanced upon a book. Called "knowledge through experience". wich while in a coma. letting him live and watch as dozens of different lives from their beginning to their ending, pass before him as a mere spectator. he witnessed the birth and death of the strongest to the weakest! commoners and kings! merchants and nobles! Now, after witnessing so much, what kind of life will he pursue? what will he do?