who taught me an important lesson?

A person who really taught me an important lesson would be King Solomon described in the book of Eccelsiastes. King Solomon was described as being an extremely rich, powerful and wealthy king who had the power to obtain whatever his eyes desired. For example,  King Solomon took for himself 700 wives and 300 concubines, and all kinds of riches,  but despite all of the things he acquired and all the things he did with this wealth, near the end of his life,  he said he hated his life because all things he acquired were empty and meaningless. Therefore, I learned that money cannot buy happiness nor love.