It is for this reason called vainglory. Do you see the masks worn by stage-players? How beautiful and splendid they are, fashioned to the extreme height of elegance. Can you show me any such real countenance? By no means. What then? Did you ever fall in love with them? No. Wherefore? Because they are empty, imitating beauty, but not being really beautiful. Thus human glory is empty, and an imitation of glory: it is not true glory. That beauty only which is natural, which is within, is lasting: that which is put on externally often conceals deformity, conceals it from men until the evening. But when the theater breaks up, and the masks are taken off, each appears what he really is.
Let us therefore pursue truth, and not be as if we were on the stage and acting a part. For of what advantage is it, tell me, to be gazed at by a multitude? It is vainglory, and nothing else. For return to your house, and solitude, and immediately all is gone. You have gone to the market-place, you have turned upon you the eyes of all present. What have you gained? Nothing. It vanished, and passed away like dissolving smoke. Do we then love things thus unsubstantial? How unreasonable is this! What madness! To one thing only let us look, to the never seek the praise of men; but if it falls to us, we shall despise, deride, and reject it. We shall be affected as those who desire gold, but receive clay. Let not any one praise you, for it profits nothing; and if he blame you, it harms you not. But with God praise and blame are attended with real gain and loss, while all is vain that proceeds from men. And herein we are made like God, that He needs not glory from men. “I receive not,” said Christ, “honor from men.” Is this then a light thing, tell me? When you are unwilling to despise glory, say, “By despising it, I shall resemble God,” and immediately you will despise it. But it is impossible that the slave of glory should not be a slave to all, more servile than slaves in reality. For we do not impose upon our slaves such tasks, as glory exacts from her captives. Base and shameful are the things she makes them say, and do, and suffer, and when she sees them obedient, she is the more urgent in her commands.
Let us fly then, I entreat you, let us fly from this slavery. But how shall we be able? If we think seriously of what is in this world, if we observe that things present are a dream, a shadow, and nothing better; we shall easily overcome this desire, and neither in little nor in great things shall be led captive by it. But if in little things we do not despise it, we shall easily be overcome by it in the most important. Let us therefore remove far from us the sources of it, and these are, folly, and meanness of mind, so that, if we assume a lofty spirit, we shall be able to look beyond honor from the multitude, and to extend our views to heaven, and obtain the good things there. Of which God grant that we may all be partakers, by the grace and lovingkindness of our Lord Jesus Christ, with whom, etc.
Source: Homilies on Titus (New Advent)