St Maximus the Confessor: Conceit is a truly accursed passion
Conceit is a truly accursed passion. It is a combination of two vice, pride and vainglory. Pride denies the Cause of virtue and nature, while vainglory adulterates nature and virtue itself. A proud man does nothing that accords with God's will, and a man full of vainglory achieve nothing that accords with nature.
St Maximus the Confessor