Nevertheless, I've been on this earth a long time and have learned a few things, although as my wife often reminds me -- ha, you don't know everything. So if you can add anything to these lessons, please, be my guest.
So some lessons, learned the hard way:
The shortest distance between two points is a straight line. I learned this in high-school geometry. The principle goes well beyond mathematics and applies to everything from mapping out a trip to planning out a career
Look to see what's coming. This comes from driver's education. Look both ways, and anticipate what the other drivers are going to do. This is especially important if you (as I did) learned to drive a stick shift, to avoid excessive shifting, excessive braking, and just generally knowing what's about to happen so you don't get blindsided. In driving, as in life, you don't want to get blindsided -- whether it's by a divorce, a layoff, a sudden accident or mishap that could have been foreseen and thus avoided.
Don't piss into the wind. I learned this at Boy Scout camp. But aside from not getting yourself wet, the message is: don't buck the trend, whether it's the prevailing opinion at work or the prevailing opinion among your friends -- unless you want to lose your job or your friends. So . . . go with the flow.
Know when to break the rules. Of course, there are always exceptions to the previous piece of advice. Sometimes the rules make so sense; they're holding you back, and you need to break out of the box. I learned this in my first job, when I broke some rules and catapulted myself into a promotion. But, I realized later, I was lucky. Because make no mistake. Most of the time you'll be opposed by the hidebound, the people with a vested interest, the people who can't see over the horizon.
Stay on your toes. I learned this one in Little League. I played second base because while I was not afraid of ground balls, I had no arm and couldn't make the throw from shortstop or third base. But playing the infield, the ball comes at you pretty fast. You have to be ready. The coach would tell us, "Stay on your toes."
How to make a decision. Some people make a list of pros and cons. Others flip a coin -- and know the answer when the coin is in the air and they're hoping for a particular result. But I learned the concept of "expected value" in business school. Suppose you have one die. It costs you a dollar to roll the die. You pick a number, and if your number comes up you win $10. Should you play? The answer is yes, because on average it will cost $6 to win $10. If you're expected value of an action is positive, then you should take the action. It works in business but also in other aspects of life including your love life. It also works in gambling. Or as Kenny Rogers told us: "You gotta know when to hold 'em, know when to fold 'em."
Pick your fights. I learned this from my older sister. We used to fight all the time when we were little kids and I would always lose -- until one day when I got a bigger, I finally got on top of her and pinned her against a rock. We never fought again, because my sister was smart enough to know she wasn't going to win anymore. I learned it again later in life when I stood up to my boss when he was doing something wrong. He backed down, because he had to, but it wasn't long before I found myself with an early retirement package.
Go down swinging. Sometimes you have to fight even if you think you might lose -- if it's a matter of principle, or justice, or desperation. If that's the case, don't give up. You never know. You might surprise them. But if you do lose, lose with honor. So maybe if I hadn't picked that fight with my boss I'd have a more generous pension today -- but at least I can live with myself.
Get out of your rut. I learned this from tennis. It's easy when you're playing tennis to fall into the habit of hitting the ball back to your opponent. He's standing right there. So sometimes you have to remind yourself: Hit the ball to the other side of the court! Make him run! Similarly, in life sometimes you have to shake things up -- to make people notice, to catch competitors off balance, to change the pace -- whether it's a career, a relationship, a vacation, an investment. Don't always just hit the ball back.