[JohnFen]

Your comment is wonderful, and I agree.

I'd only add/clarify that it's much more valuable to learn the major programming paradigms (OOP, functional programming, massively parallel programming, etc.) than to learn specific languages in terms of being well-rounded and setting yourself up for success.

If you know a paradigm, then for the most part, learning new languages in that paradigm is just a matter of learning new syntax, which is a considerably easier task.