How to persuade family members not to believe in superstition?

First; Prepare sufficient rational materials for superstitious contents, especially harmful events that have occurred. Show him. The more the better!

Second: it is not a matter of a day or two to crack down on superstition, so we should be mentally prepared. It is important to seize the opportunity.

Third: If you want to get rid of the pain caused by him and superstition, you'd better know more.