[12] Bhikkhus, dwell accomplished in virtue (sīla), accomplished in the Pātimokkha; dwell restrained by the restraint of the Pātimokkha, accomplished in conduct and resort, seeing danger in the slightest faults; having undertaken them, train in the training rules. Bhikkhus, for those who dwell accomplished in virtue, accomplished in the Pātimokkha, who dwell restrained by the restraint of the Pātimokkha, accomplished in conduct and resort, seeing danger in the slightest faults, training in the training rules they have undertaken — what more remains to be done?
If, bhikkhus, while a bhikkhu is walking, covetousness … ill will has vanished; dullness and drowsiness …; restlessness and remorse …; doubt has been abandoned; his energy is aroused and unflagging; his mindfulness is established and unmuddled; his body is tranquil and undisturbed; his mind (citta) is concentrated and unified — then, bhikkhus, a bhikkhu even while walking, being of such a state, is called ardent, possessed of moral dread (ottappa), constantly and continually of aroused energy, and resolute.
If, bhikkhus, while a bhikkhu is standing … If, bhikkhus, while a bhikkhu is sitting … If, bhikkhus, while a bhikkhu is lying down, awake, covetousness … ill will has vanished; dullness and drowsiness …; restlessness and remorse …; doubt has been abandoned; his energy is aroused and unflagging; his mindfulness is established and unmuddled; his body is tranquil and undisturbed; his mind is concentrated and unified — then, bhikkhus, a bhikkhu even while lying down, awake, being of such a state, is called ardent, possessed of moral dread, constantly and continually of aroused energy, and resolute.
Restrained should he walk, restrained should he stand,
restrained should he sit, restrained should he lie down;
restrained should a bhikkhu draw in his limbs,
restrained should he stretch them out.
Above, across, and below,
as far as the world extends,
he is one who surveys the arising and passing away
of dhammas, of the aggregates.
One training in what accords with serenity of mind,
ever mindful —
such a bhikkhu, they say,
is 'constantly resolute.'
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.