Nicene and Post-Nicene Fathers, Vol. II:
On Christian Doctrine: Chapter 38

Chapter 38.—Love Never Faileth.

42.  But sight shall displace faith; and hope shall be swallowed up in that perfect bliss to which we shall come:  love, on the other hand, shall wax greater when these others fail.  For if we love by faith that which as yet we see not, how much more shall we love it when we begin to see!  And if we love by hope that which as yet we have not reached, how much p. 534 more shall we love it when we reach it!  For there is this great difference between things temporal and things eternal, that a temporal object is valued more before we possess it, and begins to prove worthless the moment we attain it, because it does not satisfy the soul, which has its only true and sure resting-place in eternity:  an eternal object, on the other hand, is loved with greater ardor when it is in possession than while it is still an object of desire, for no one in his longing for it can set a higher value on it than really belongs to it, so as to think it comparatively worthless when he finds it of less value than he thought; on the contrary, however high the value any man may set upon it when he is on his way to possess it, he will find it, when it comes into his possession, of higher value still.