Because after my first year I had a lot of success, took everybody by storm, came back the next year thought it was easy and didn't have near the season I had the previous year. It was kind of a wake-up call. And so, life goes on.
The moral duty to be expected in different ages is not a unity of standard, or of acts, but a unity of tendency. At one time the benevolent affections embrace merely the family, soon the circle expanding includes first a class, then a nation, then a coalition of nations, then all humanity and finally, its influence is felt in the dealings of man with the animal world.