Yes, it's very cheesy, but maybe rephrase it as "people who are open to trying new languages are more open-minded by definition, and they keep a flexible mind and learn to think about problems in different ways."

I mean, however cheesy some Smug Lisp Weenies(tm) may be, why not learn something new? Lisp (the language family) is really cool, you should try it. elisp may not be the most exciting family member, though.