Some things one can never tire of, like the light of understanding in a child's eyes, the leap of the space shuttle into the sky, and the magesty of animals in their natural surroundings.
As a rule, on most days I take time out for a four-mile walk/run, followed by a swim when the weather permits. My legs are short, so this usually excises an hour and a half from my day. Being a procrastinator by trade, too much of the time I find myself attempting to squeeze it in before sunset.
It doesn't help that here in Florida we do not have the long twilight that northerners enjoy, so I need to watch the clock rather than the window. I can leave home in broad daylight, and by the time I return it is dark. The halfway point is in a small, nearby park with a jogging trail through the woods, and before I finished my circuit the other day, dusk was well-settled. I prefer not to run under those conditions, since it's harder to see the potentially treacherous dips and hills in the path—but there are advantages.
Like the sudden, silent flight overhead of a huge barred owl, who obligingly paused on a tree branch long enough for me to admire it briefly.
I continued my run with a lighter step.