How humble of him to acknowledge his humbleness.
United States president Barack Obama says he and Prime Minister Kevin Rudd share several personality traits – one of which is humility. [source]
C S Lewis says in the book ‘The Screwtape Letters’…"Catch him (the "patient", the man that Wormwood is trying to get to hell) at the moment when he is really poor in spirit and smuggle into his mind the gratifying reflection, ‘By jove! I’m being humble’, and almost immediately pride – pride at his own humility – will appear."