I really wish I had some form of artistic skill. I've spent a lot of effort over the years trying to learn how to draw better, how to design user interfaces, how to make things look good on a screen. And still, I'm terrible at it. Worse, I suspect I can continue on this path indefinitely and I'll never be considered "good" at it.
That's the point he's making in that sentence you quote. You can teach yourself to do it, but you can't teach yourself to be good at it.
I really wish I had some form of artistic skill. I've spent a lot of effort over the years trying to learn how to draw better, how to design user interfaces, how to make things look good on a screen. And still, I'm terrible at it. Worse, I suspect I can continue on this path indefinitely and I'll never be considered "good" at it.
That's the point he's making in that sentence you quote. You can teach yourself to do it, but you can't teach yourself to be good at it.