We’ve been having a dry spell, but that broke today, in the sense that Scotch Highland bulls break china in shops and politicians break promises not to raise taxes.

It had been cloudy for a couple days, but showers had been spotty. So today didn’t look like much of a change. As the day wore on, though, the sky darkened and lowered (that’s not “lowered” as in “got lower,” but “lowered” as in Longfellow’s “…when night is beginning to lower.” It rhymes with “flower”). The darker it got, the more you expected it to be raining when you checked out the window, and the more you were surprised that it wasn’t yet. Obviously a lot of potential energy was building up. You began to expect a plague of frogs or something.

Then the rain came all at once, gusting in on a billow of wind. It rained hard, and then it hailed for a while. The hail stopped but the rain went on.

My African library assistant seemed frightened by the whole thing. I’d had the idea that they get pretty severe weather back where he comes from, but it all seemed new to him.

Which doesn’t have anything at all to do with my subject for today’s post.

I was thinking about being young, and trying to be wise (I know I’m far removed from being young, but I can remember that far back. Also I’m remarkably immature. And I didn’t say “being wise.” I said “trying to be wise”).

I often wonder about the value of sharing wisdom with young people. We all try to do it. It seems a waste to go through all the hard learning experiences we’ve had, if we can’t pass that experience on to the young.

The problem, it seems to me, is that wisdom is a thing you can’t really share.

You heard your elders give you the same advice you want to pass on now, didn’t you, once long ago? Did it help?

Of course not. Because the maxims and bromides and proverbs and aphorisms never mean anything until you’ve bumped up against life and gotten some bruises. Touched a few hot stoves and gotten burned.

It’s only then—only after a few bruises and burns have been collected, that the sayings of your elders suddenly start to make sense.

When I was a kid I made a conscious effort to follow the advice I heard from old people. I did this because I was more cowardly than most people my age, and I wanted any excuse I could wangle to avoid taking risks.

And it didn’t work. I had the words right, but the music was wrong. Wisdom only operates, it seems, in those who are inclined to act foolishly in the first place. For the cautious and prudent, like me, the rules turn out to be kind of counterproductive.

The moral? Go ahead. Tell the kids not to play in the street.

But be prepared to see them get hit by cars anyway.

The consolation is that the survivors will probably listen.