If you would dress like a gentleman, you must do one of two things; either study the subject of a gentleman’s wardrobe until you are competent to pick out good suits from freaks and direct your misguided tailor, or, at least until your perceptions are trained, go to an English one. This latter method is the easiest, and, by all odds, the safest.
Emily Post in The Clothes of a Gentleman (1922)