The below is a paragraph from "Divine Institute" by Lactantius. The soul is always in its own condition; and from the time when it receives the power of breathing, it remains the same even to the end, until, being sent forth from the confinement of the body, it flies back to its own abode. In the next place, the soul, although inspired by God, yet, because it is shut up in a dark abode of earthly flesh, does not possess knowledge, which belongs to divinity. Therefore it hears and learns all things, and receives wisdom by learning and hearing; and old age does not lessen wisdom, but increases it, if the age of youth has been passed in virtue; and if excessive old age shall have enfeebled the limbs, it is not the fault of the mind if the sight has vanished, if the tongue has become benumbed, if the hearing has grown deaf, but it is the fault of the body. Could anyone please explain the meaning of "if the age of youth has been passed in virtue"? I have a hard time making a connection in this context.