The Pure And The Impure: By oneself indeed is evil done and by oneself is one defiled; by oneself is evil not done and by oneself is one purified. Purity and impurity depend entirely on oneself; no one can purify or defile another. - The Dhammapada.

Balavagga; Ganthibhedakacora Vatthu: A fool with a sense of his foolishness is — at least to that extent — wise. But a fool who thinks himself wise really deserves to be called a fool. - The Dhammapada

Dhamma of the Virtuous: Ornamented royal carriages do wear out, the body also grows old, but Dhamma of the Virtuous doesn't decay. Thus, indeed, say the Virtuous among themselves. - The Dhammapada