Dhammapada · 13.6

Yo ca pubbe pamajjitvā, pacchā so nappamajjati;Somaṃ lokaṃ pabhāseti, abbhā muttova candimā.

Yo ca pubbe pamajjitva, paccha so nappamajjati; Somam lokam pabhaseti, abbha muttova candima.

One who was heedless and afterward becomes heedful — he lights up the world, like the moon freed from a cloud.

— Dhammapada 13.6

Source: Pali text from the Khuddaka Nikāya of the Pali Canon (oldest extant Buddhist scripture, compiled c. 3rd century BCE). Public-domain English readings drawn from F. Max Müller's translation in Sacred Books of the East, Vol X (1881) and the Buddhist Publication Society's freely-licensed Acharya Buddharakkhita rendering.