Augustine of Hippo : Daniel was called by the angel "a man of desires." What were those desires of his, but ardent longings for the beauty of wisdom? Because in his youth he had trampled on lust, as a prisoner he had crushed the pride of kings, when shut in close he had shut the mouths of lions. — SERMON 391:5 Basil of Caesarea : I indeed maintain that even Gabriel in no other way foretells events to come than by the foreknowledge of the Spirit, by reason of the fact that one of the boons distributed by the Spirit is prophecy. And whence did he who was ordained to announce the mysteries of the vision to the man of desires derive the wisdom whereby he was enabled to teach hidden things, if not from the Holy Spirit? The revelation of mysteries is indeed the peculiar function of the Spirit, as it is written, "God has revealed them to us by his Spirit." — ON THE HOLY SPIRIT 16:38 Ephrem the Syrian : "Daniel, pay attention," … that is, learn and weigh carefully the mysteries of those things whose results you asked with constant prayer and with three weeks of mourning and fast. — COMMENTARY ON Daniel 10:9-11 Jerome : Verse 11. "And he said to me, 'Daniel, thou man of desires...'" It was fitting that he be addressed as a man of desires, for by dint of urgent prayer and affliction of body and the discipline of severe fasting he desired to learn of the future and to be informed of the secret counsels of God. Instead of "man of desires," Symmachus rendered it as "desirable man." The term is apt, for every saint possesses a beauty of soul and is beloved by the Lord. — St. Jerome, Commentary on Daniel, CHAPTER TEN