How many languages could we learn?

Question

Can we learn more than one language and be good as a professional ?
how many languages could we learn ?
I mean to work as professional, to use the languages otherwise just for learning we could learn how many we want.

Answer 1

hey there,
if you want to be an application developer you will usially have to learn more than one language. im currently absolving an apprenticeship and i will have to learn C++, C#, ABAP, SQL, HTML, CSS, JavaScript, and probably some JavaScript dialects