To really know someone or something one must first love that someone or something. This applies both to human relationships and to Bible study.
Foolish and wise people do different things for fun: the fool thinks doing mean and destructive things is a joke, while the wise person actively delights in gaining wisdom.
Wise people listen to the words of wise people and acquire wisdom thereby. Foolish people, on the other hand, are incapable of acquiring wisdom by any means other than the rod of correction.