Famous quotes containing the words twenty and/or grades:
“Since civilizing children takes the better part of two decades—some twenty years of nonstop thinking, nurturing, teaching, coaxing, rewarding, forgiving, warning, punishing, sympathizing, apologizing, reminding, and repeating, not to mention deciding what to do when—I now understand that one wrong move is invariably followed by hundreds of opportunities to be wrong again.”
—Mary Kay Blakely (20th century)
“There are no grades of vanity, there are only grades of ability in concealing it.”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)