a civil question deserves a civil answer

a civil question deserves a civil answer

If someone asks a reasonable question, then it warrants an answer. Often used as a reprimand. Why won't you answer me, Alice? A civil question deserves a civil answer! All Jim did was ask about your day. Come on, a civil question deserves a civil answer.
References in classic literature ?
To this I added a very handsome present of some Italian silks for his wife and two daughters, for such the captain's son informed me he had; with two pieces of fine English broadcloth, the best I could get in Lisbon, five pieces of black baize, and some Flanders lace of a good value.