Dhammapada · 9.1
Abhittharetha kalyāṇe, pāpā cittaṃ nivāraye;Dandhañhi karoto puññaṃ, pāpasmiṃ ramatī mano.
Abhittharetha kalyane, papa cittam nivaraye; Dandhanhi karoto punnam, papasmim ramati mano.
Hasten to do good; restrain the mind from evil. For one who is slow in doing good, the mind delights in evil.
— Dhammapada 9.1
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.