Augustine (somewhere, in De doctr. Christ.?) says that whatever is true is from God. The only thing we have that is our own is our sin and falsehood. Also this: laus cerei (august. c.d. 15.22):
Haec tua sunt, bona sunt, quia tu bonus ista creasti.
Nil nostrum est in eis, nisi quod peccamus amantesordine neglecto pro te, quod conditur abs te.
Gerhard, close of Method: The mind should be fortified against pride by meditating on: (1) The humility of Christ, who for our sakes humbled Himself to death on the cross. Augustine (Sermon 39 de verb. Dom.): “Deign to be humbled for God, for God deigned to be humbled for you.” (2) Our unworthiness. We are dust and ash. Death will humble us whether we like it or not, making us food for the vermin. (3) Our need. The greatest thing we know is the least of the things we do not. Whatever we have comes down to us from the hand of God. <328> Thus the treasure belongs to Another. (4) Our fragility. In testing we can easily succumb if God’s grace does not preserve us. But now, “God resists the proud but gives grace to the humble” (1 Peter 5:5). (5) The superiority of others. One must recognize the gifts of God in others lest we insult the Giver Himself. It does you no harm to subject yourself to all others. It hurts a lot if you put yourself before even one person. (Cf. Regulae duodecim in pugna spirituali observandae of Johannes Picus Mirandula, Oper., tom. 1, p. 29, Basel edition.)
Pride refuses to suffer, humility suffers with patience and trust.