"Twice two’s four, and a stone’s a stone. Here to-morrow we have a duel. You and I will say it’s stupid and absurd, that the duel is out of date, that there is no real difference between the aristocratic duel and the drunken brawl in the pot-house, and yet we shall not stop, we shall go there and fight. So there is some force stronger than our reasoning."
January 1, 1970
https://en.wikiquote.org/wiki/Duels