"Highly educated bores are by far the worst; they know so much, in such fiendish detail, to be boring about"

In this quote, Louis Kronenberger is revealing his contempt for individuals who are extremely educated but lack the capability to engage others in conversation. He describes them as "bores," showing that they are dull and boring. Kronenberger believes that their comprehensive understanding and attention to detail in fact works versus them, making them much more uninteresting. This could be since they are so focused on sharing their understanding and impressing others with their intelligence that they fail to connect on a deeper level. Overall, Kronenberger is highlighting the value of not simply having understanding, but also being able to communicate and get in touch with others effectively.