Or as someone else once said, "When I hear the word 'gun' I reach for my culture."

Incidentally, about changing opinions in art criticism, you will find exactly the same thing in science. A way of looking at things is discarded when a more enlightened way of thinking comes along. We learn as we go. In the 19thC JS Bach was considered to have little merit as a composer. That changed, now he's considered one of the greats. That will never change - there will never be a time when he goes back to being considered third-rate.