It's likely that taboo words are stored in the right hemisphere of the brain. Massive left hemisphere strokes or the entire surgical removal of the left hemisphere can leave people with no articulate speech other than the ability to swear, spout cliches and song lyrics.
Our whole past experience is continually in our consciousness, though most of it sunk to a great depth of dimness. I think of consciousness as a bottomless lake, whose waters seem transparent, yet into which we can clearly see but a little way.
We have Christians against Muslims against Jews, and no matter how liberal your theology, merely identifying yourself as a Christian or a Jew lends tacit validity to this status quo. People have morally identified with a subset of humanity rather than with humanity as a whole.
The old man, especially if he is in society, in the privacy of his thoughts, though he may protest the opposite, never stops believing that, through some singular exception of the universal rule, he can in some unknown and inexplicable way still make an impression on women.
