For anyone who has been in the industry more than a few years, and for everyone that really enjoys software and computing systems, odds are you’ve learned more than one language in your travels and studies. If not, I suggest you’ve done yourself a disservice.
The lesscode blog isn’t too active any more, but it has much sage advice, and a good post from last year that’s been referred to many times. “The Philosopher’s Song” is a ranging muse on the efficacy of languages, and the rage of Ruby vs. Python and the sameness of now to history.
Branch, enrich, learn, but do not stay beholden to one language in your skills. When all you have is a hammer….
Currently playing in iTunes: The Ride of the Rohirrim by Howard Shore