Real progress consists in the movement of mankind toward the understanding of norms, and toward conformity to norms. Real decadence consists in the movement of mankind away from the understanding of norms, and away from obedience to norms.
There are metaphorical hills on which I would be willing to die. The Oxford comma is one of them.
So easy to forget that the best way to educate yourself is to read great works of literature and philosophy, then talk about them. Bring back the salon!