Dhammapada · 8.5
Attā have jitaṃ seyyo, yā cāyaṃ itarā pajā;Attadantassa posassa, niccaṃ saññatacārino.
Atta have jitam seyyo, ya cayam itara paja; Attadantassa posassa, niccam sannatacarino.
The conquest of self is truly better than the conquest of others; for one self-tamed, ever restrained in conduct —
— Dhammapada 8.5
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.