Interesting post and interesting replies as well. I'll toss in my 2 cents.
As a child we learn many things quickly. We only put our hand near a hot burner on a stove once. It's not like we have to do this every so often, like once every four years, to learn that important lesson. It's one and done.
But not everything in life is as cut and dried as a hand near a stove. Life throws us a lot of grey areas. A guy might buy cheap shoes 3 or 4 times before he learns his lesson not to skimp on shoes. Or I might click on an email that looks suspicious, but it just might be from my bank as well. We make a lot of judgement calls.
And that means that as humans we're going to make a lot of mistakes along the way. Heck, I make mistakes all the time. As an owner of several businesses I make a lot of decisions and not all of the are going to be the right decisions. The trick, however, is don't do really stupid things. Little mistakes can be overcome, big mistakes are different in that they can sometimes never be overcome.
Don't do really stupid things.
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Jimmy Carter decimated our military, Reagan built it back up. Clinton decimated our military, Bush built it back up. Obama decimated our military, Trump will have to built it back up. This is really, really stupid.
We elect the same members to the House and Senate over and over again, then bitch about the outcome. Like a battered wife, we think, "this time will be different". This is really, really stupid.
Our nation fought Muslims off the Barbary Coast after appeasing them in every way humanly possible and then some. We eventually learned the hard way that appeasement is the exact wrong approach with some cultures. Yet today we are giving them billions of dollars in cold hard cash and gift wrapping military equipment presents as part of our Reach Out And Hug A Terrorist program. This is really, really stupid.
Little mistakes can be overcome, big mistakes are different in that they can sometimes never be overcome.
Don't do really stupid things.