In which literature explains it better than I

On Glen Beck's misuse of knowledge of our founding fathers.

"Learning is a good thing, but more often it leads to mistakes. It is like the admonition of the priest Konan. It is worthwhile just looking at the deeds of accomplished persons for the purpose of knowing our own insufficiencies. But often this does not happen. For the most part, we admire our own opinions and become fond of arguing." - Hagakure