Marcus Aurelius
Meditations 11.3
What a soul that is which is ready, if at any moment it must be separated from the body, and ready either to be extinguished or dispersed or continue to exist; but so that this readiness comes from a man's own judgment, not from mere obstinacy, as with the Christians, but considerately and with dignity and in a way to persuade another, without tragic show.
Marcus Aurelius, Meditations 11.3, translated by George Long
What a soul is that which is ready to be released from the body at any requisite moment, and be quenched or dissipated or hold together! But the readiness must spring from a man's inner judgment, and not be the result of mere opposition [as is the case with the Christians]. It must be associated with deliberation and dignity and, if others too are to be convinced, with nothing like stage-heroics.
Marcus Aurelius, Meditations 11.3, translated by C. R. Haines