You've no idea what a poor opinion I have of myself -- and how little I deserve it.
Source: Sir Ruthven Murgatroyd, disguised as Robin Oakapple, in Ruddigore, act 1.
-- William Gilbert, (Nov 18 1836-1911), English dramatist; He collaborated with Sullivan on 14 comic operas, including Pirates of Penzance, 1880; The Mikado, 1885.