I value learning new languages, especially as I have yet to find a very good one. Some are pure and beautiful like Scheme, but if you asked me what single language I would take to a lonely island with me where I was stranded, it would still have to be C.

To those here who would like to have some guidance diving into other languages I can recommend these two books:

Bruce Tate: Seven Languages in Seven Weeks https://www.amazon.com/Seven-Languages-Weeks-Programming-Pro...

Bruce Tate: Seven More Languages in Seven Weeks https://www.amazon.com/Seven-More-Languages-Weeks-Shaping/dp...

You can work through them in <4 months, and then we can talk again whether you found it useful (I did).