So there I was, just getting launched into a nice post about the word worry, when I was stricken with a sudden worry that I'd written about worry before. And it turns out that I have, so I'm going to have to change my mind.
Pity. I was looking forward to sharing the thought that it's possible to be worried about being worried by a dog.
Anyway: changing my mind.
Now. If you know and understand absolutely everything about a subject; if what you know has come from places that are absolutely to be trusted; if Time and Place and the evolving ways of the world will never have any effect on it; if Science can never throw any new light upon it; if sticking to your guns isn't going to make you more of a nuisance than a hero; and, if you aren't mistaking a principle for a fashion, then don't change your mind.
Otherwise, you really will have to move in order to keep up.
Thing To Do Today: change your mind. The word change comes from the Old French changier, from the Latin cambīre, to exchange or barter.