Earlier this month, on his 54th birthday, China’s richest man announced that he would step down as executive chairman of e-commerce giant Alibaba. Jack Ma, the rags-to-riches entrepreneur behind China’s biggest tech company isn’t going to retire. He wants to be a teacher again.

With a net worth of $40.5 billion, Ma is one of the richest people on the planet and a prominent figure: He is well-known for speaking at conferences, advocating globalization, and rubbing shoulders with world leaders.