It was not the first thought to appear twice in my mind, but it is one that I try to remind myself of often.
Do not do unto yourself what you would not have others do unto you.
I consider it a useful rule. In particular, I try to remember it when I am tired, but fail to go to bed, imagining that a lack of sleep is probably not that harmful. Also, when eating well past satiety. What, would be my response if someone else were to insist, or even suggest, I stay up late when I am tired, or eat more when I am well-filled? I can almost guarantee that I would think him foolish and annoying. Why do I disregard my internal cues?