(authors) Mark Twain

     We should be careful to get out of an experience only the wisdom that is in it — and stop there; lest we be like the cat that sits down on a hot stove-lid. She will never sit down on a hot stove-lid again — and that is well; but also she will never sit down on a cold one anymore.
             – “Pudd’nhead Wilson’s New Calendar” 

[A lady on board] had run down and down and down, and had at last reached a point where medicines no longer had any helpful effect upon her. I said I knew I could put her upon her feet in a week. It brightened her up, it filled her with hope, and she said she would do everything I told her to do. So I said she must stop swearing and drinking, and smoking and eating for four days, and then she would be all right again. And it would have happened just so, I know it; but she said she could not stop swearing, and smoking, and drinking, because she had never done those things.

So there it was. She had neglected her habits, and hadn’t any. Now that they would have come good, there were none in stock. She had nothing to fall back on. She was a sinking vessel, with no freight in her to throw overboard and lighten ship withal. Why, even one or two little bad habits could have saved her, but she was just a moral pauper.

             – “Following the Equator, Chapter 1“