Dhammapada · 5.7

Attā have jitaṃ seyyo, yā cāyaṃ itarā pajā;Attadantassa posassa, niccaṃ saññatacārino.

Atta have jitam seyyo, ya cayam itara paja; Attadantassa posassa, niccam sannatacarino.

Self-conquest is indeed better than conquering all others — for the self-tamed person, the one of constantly restrained conduct.

— Dhammapada 5.7

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.