16 The mind must be strengthened, beloved brethren, by these meditations. By exercises of this kind it must be confirmed against all the darts of the devil. Let there be the divine reading in the hands, the Lord's thoughts in the mind; let constant prayer never cease at all; let saving labour persevere. Let us be always busied in spiritual actions, that so often as the enemy approaches, however often he may try to come near, he may find the breast closed and armed against him.
For a Christian man's crown is not only that which is received in the time of persecution: peace also has its crowns, wherewith the victors, from a varied and manifold engagement, are crowned, when their adversary is prostrated and subdued. To have overcome lust is the palm of continency. To have resisted against anger, against injury, is the crown of patience. It is a triumph over avarice to despise money. It is the praise of faith, by trust in the future, to suffer the adversity of the world.
And he who is not haughty in prosperity, obtains glory for his humility; and he who is disposed to the mercifulness of cherishing the poor, obtains the retribution of a heavenly treasure; and he who knows not to be jealous, and who with one heart and in meekness loves his brethren, is honoured with the recompense of love and peace. In this course of virtues we daily run; to these palms and crowns of justice we attain without intermission of time.
Source: The Treatises of Cyprian (New Advent)