Yes! I would go so far as to say that almost all the most important revelations I had programming-wise where when I learned a new language and suddenly gained

Yes! I would go so far as to say that almost all the most important revelations I had programming-wise where when I learned a new language and suddenly gained a new way of looking at everything I know. And the nice thing about this is, you will keep these insights whether you stick with the actual language or not. That said, there have been a few languages that have failed to do so. Almost invariably, I loathe working with them.