"Be not boastful in your speech! " ~~ Ben Sira 4:32
"There is no truer index to intelligence than the way one acts at the table." ~~ Ibn Gabirol
"Insulting one’s senior is not the same as insulting one’s junior." ~~ Talmud, Ketubot
"Good manners may in Seven Words be found: Forget Yourself and think of Those Around." ~~ Arthur Guiterman
"Manners provide the lubrication without which frictions would develop." ~~ Rabbi Edgar Magnin
"Shame not the old: we shall all be numbered among them." ~~ Ben Sira 8:6
"No learning, no manners; no manners, no learning; no lore, no loaf." ~~ Avot 3:17
"Who guards his mouth preserves his life." ~~ Proverbs (Mishle) 13:3
"If a great man said it, do not laugh at it!" ~~ Talmud, Berakhot
"Good manners mean more than learning." ~~ Tanna Deve Eliyahu R.
"Who respects the elderly is as if he respects the Lord." ~~ Alphabet of Ben Sira
"Do not dishonor the old: we shall all be numbered among them." ~~ Ben Sira