"Our understanding of the thought of the past is liable to be the more adequate, the less the historian is convinced of the superiority of his own point of view, or the more he is prepared to admit the possibility that he may have to learn something, not merely about the thinkers of the past, but from them."

Next Quote

I think this fear of insanity is comparable to the fear people once had of falling off the edge of the world. Or the fear of heretics...What's happening is that each year our old flat earth of conventional reason becomes less and less adequate to handle the experiences we have and this is creating wide-spread feelings of topsy-turviness. As a result we're getting more and more people in irrational areas of thought...occultism, mysticism, drug changes and the like...because they feel an inadequacy in classical reason to handle what they know are real experiences.

— Robert M. Pirsig