Dutiyadasabalasutta 3.2

3.2

Āraddhavīriyo ca kho, bhikkhave, sukhaṃ viharati pavivitto pāpakehi akusalehi dhammehi, mahantañca sadatthaṃ paripūreti.

But an energetic person lives happily, secluded from bad, unskillful qualities, fulfilling their heart’s great goal.