Angels are spirits, but it is not because they are spirits that they are angels. They become angels when they are sent. For the name angel refers to their office, not their nature. You ask the name of this nature, it is spirit; you ask its office, it is that of an Angel, which is a messenger.
Saint AugustineLet us therefore yield ourselves and bow to the authority of the Holy Scriptures, which can neither err nor deceive.
Saint AugustineIt was pride that changed angels into devils; it is humility that makes men as angels.
Saint AugustineO Lord, grant that I may do Thy will as if it were my will, so that Thou mayest do my will as if it were Thy will.
Saint AugustineGive me yourself, O my God, give yourself back to me. Lo, I love you, but if my love is too mean, let me love more passionately. I cannot gauge my love, nor know how far it fails, how much more love I need for my life to set its course straight into your arms, never swerving until hidden in the covert of your face.
Saint AugustineA brotherly person rejoices on my account when he approves me, but when he disapproves, he is loving me. To such people I will reveal myself. They will take heart from my good traits, and sigh with sadness at my bad ones. My good points are instilled by you and are your gifts. My bad points are my faults and your judgements on them. Let them take heart from the one and regret the other. Let both praise and tears ascend in your sight from brotherly hearts, your censers. ...But you Lord...Make perfect my imperfections.
Saint Augustine