Thadeus Frei Posted over 1 year ago How many languages is it possible to know? It's important that we define what it means to 'know' a language. Is it a certain sensibility with a cultures idiomatic thought? Learning a language seems a continual imperative, it is just too easy to become complacent. With thought characterized by expression nobody can think by naming. In many ways this has more to do with definition and our discretion with it. I know your question had a more practical orientation than what I am referring to but it's consequential that the semantics of the issue is resolved.