Quotes from the Saints
The Four Hundred Chapters on Love:
293. On the one hand, the holy angels urge us on to the good, and natural tendencies and a good will assist us. On the other hand, passions and an evil will support the assaults of the demons.
294. Sometimes God himself lights on a pure mind and teaches it, sometimes the holy angels propose fine things, sometimes the nature of material reality is contemplated.
301. The mind is first of all in wonder when it reflects on God's universal infinity and that inaccessible and greatly desired ocean. Next is is amazed at how from nothing he has brought into existence everything that is. But just as, "of his greatness there is no end," so is his wisdom unsearchable.
St. Maximus the Confessor