Whether a person can achieve great things and make big money in the future doesn't really depend on their education level or whether they can speak well. Just look for these four qualities in them:

First, whether they can control themselves and resist temptation. Don’t indulge just for a moment of pleasure; think about the future.
Second, when others oppose them or say they are wrong, they don’t rush to argue back. Instead, they are willing to listen to whether there is any truth, willing to change, and willing to improve.