24 Every one of which things, O good virgins, you ought to observe, to love, to fulfil, who, giving yourselves to God and Christ, are advancing in both the higher and better part to the Lord, to whom you have dedicated yourselves. You that are advanced in years, suggest a teaching to the younger. You that are younger, give a stimulus to your coevals. Stir one another up with mutual exhortations; provoke to glory by rival proofs of virtue. Endure bravely, go on spiritually, attain happily. Only remember us at that time, when virginity shall begin to be rewarded in you.
Source: The Treatises of Cyprian (New Advent)