Solely in the world of languages is the amateur of value. Well-intentioned sentences full of mistakes can still build bridges between people.
One should connect language learning with either work or leisure. And not at the expense of them but to supplement them.
Language is the only thing worth knowing even poorly.
He who knows other languages feels even closer to his own language.
Language is present in a piece of work like the sea in a single drop.
Knowledge—like a nail—is made load-bearing by being driven in. If it's not driven deep enough, it will break when any weight is put upon it.