" The hardest foreign language you will ever learn is your first one. And the second hardest foreign language you will ever learn is your second one. In other words, language learning gets easier with each subsequent iteration. This phenomenon owes to the fact that languages, especially those belonging to the same family, share a great deal in terms of grammar, syntax, phonetics, and vocabulary. . . Not only are many of the concepts repetitive across languages, but learners become more adept at recognizing patterns, formulating sentences, and memorizing information. "

― Benjamin Batarseh , The Art of Learning a Foreign Language: 25 Things I Wish They Told Me