A blessing in disguise is a blessing in disguise. What ancient books did it come from and who wrote them?

Period: Western Han Dynasty

Author: Liu An, King of Huainan, and his disciples collectively compiled.

Huainanzi Human Training, also known as Huainan Lie Hong? People's training: "Those who are close to the fort have good skills, and the horse dies for no reason. Everybody hang up. His father said, "Why isn't this a blessing?" After living for several months, his horse returned to Hu. Congratulations, everyone. ... so blessing is curse, curse is blessing, unfathomable, unfathomable. "

Huainanzi (also known as Huainan and Liu) is a philosophical and Taoist work of Han nationality written by Liu An, the king of Huainan in the Western Han Dynasty, and his disciples.