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 AugustineI acknowledge Thee, Lord of heaven and earth, and praise Thee for my first rudiments of being, and my infancy, whereof I remember nothing; for Thou hast appointed that man should from others guess much as to himself; and believe much on the strength of weak females.
Saint AugustineIt is not the being seen of men that is wrong, but doing these things for the purpose of being seen of men. The problem with the hypocrite is his motivation.
Saint AugustinePoltinus the Platonist proves by means of the blossoms and leaves that from the Supreme God, whose beauty is invisible and ineffable, Providence reaches down to the things of earth here below. He points out that these frail and mortal objects could not be endowed with a beauty so immaculate and so exquisitely wrought, did they not issue from the Divinity which endlessly prevades with its invisible and unchanging beauty all things.
Saint Augustine