Bernard of Clairvaux

“My burden is light,” said the blessed Redeemer, a light burden indeed, which carries him that bears it. I have looked through all nature for a resemblance of this, and seem to find a shadow of it in the wings of a bird, which are indeed borne by the creature, and yet support her flight towards heaven.

There are some who wish to learn for no other reason than that they may be looked upon as learned, which is ridiculous vanity … Others desire to learn that they may morally instruct others, that is love. And, lastly, there are some who wish to learn that they may be themselves edified; and that is prudence.

Thus understanding and love, that is, the knowledge of and delight in the truth, are, as it were, the two arms of the soul, with which it embraces and comprehends with all the saints the length and breath, the height and depth, that is the eternity, the love, the goodness, and the wisdom of God.