Dhammapada 63 [Khuddaka Nikaya]

5 - Balavagga, The Fool
4 - Ganthibhedakacora Vatthu

Ya balo mannati balyam, panditovapi tena so;
balo ca panditamani, sa ve baloti vuccati.

63: The fool who knows that he is a fool can, for that reason, be a wise man; but the fool who thinks that he is wise is, indeed, called a fool.
Reference:
Mya Tin, Daw, tr. The Dhammapada: Verses and Stories. Rangoon: Burma Tipitaka Association, 1986.

Posted by Nyan U