Dhammapada · Verse 243

Pali

Tato malā malataraṁ,
avijjā paramaṁ malaṁ;
Etaṁ malaṁ pahantvāna,
nimmalā hotha bhikkhavo.

English

But a worse stain than these
is ignorance, the worst stain of all.
Having given up that stain,
be without stains, mendicants!

License: English CC0 (Bhikkhu Sujato); Pali public domain. Source: SuttaCentral (sc-data).