When men get together to pit their strength in games of skill, they start off in a light and friendly mood, but usually end up in a dark and angry one, and if they go on too long they start resorting to various underhanded tricks. When men meet at some ceremony to drink, they start off in an orderly manner, but usually end up in disorder, and if they go on too long they start indulging in various irregular amusements. It is the same with all things. What starts out being sincere usually ends up being deceitful. What was simple in the beginning acquires monstrous proportions in the end.

Taoism. Chuang Tzu 4