Today was the feast of St. Bernard of Clairvaux, Doctor of the Church. From a letter to the Cardinal Deacon Peter:
From this blindness, then, it follows that we frequently love and approve that which is not for that which is; since while we are in this body we are wandering from Him who is the Fulness of Existence. And what is man, O God, except that Thou hast taken knowledge of Him? If the knowledge of God is the cause that man is anything, the want of this makes him nothing. But He who calls those things which are not as though they were, pitying those reduced in a manner to nothing, and not yet able to contemplate in its reality, and to embrace by love that hidden manna, concerning which the Apostle says: Your life is hidden with Christ in God (Cor. iii. 3). But in the meantime He has given us to taste it by faith and to seek for by strong desire. By these two we are brought for the second time from not being, to begin to be that His (new) creature, which one day shall pass into a perfect man, into the measure of the stature of the fulness of Christ. That, without doubt, shall take place, when righteousness shall be turned into judgment, that is, faith into knowledge, the righteousness which is of faith into the righteousness of full knowledge, and also the hope of this state of exile shall be changed into the fulness of love. For if faith and love begin during the exile, knowledge and love render perfect those in the Presence of God. For as faith leads to full knowledge, so hope leads to perfect love, and, as it is said, If ye will not believe ye shall not understand (Is. vii. 9, acc. to lxx.), so it may equally be said with fitness, if you have not hoped, you will not perfectly love. Knowledge then is the fruit of faith, perfect charity of hope. In the meantime the just lives by faith (Hab. ii. 4), but he is not happy except by knowledge; and he aspires towards God as the hart desires the water-brooks; but the blessed drinks with joy from the fountain of the Saviour, that is, he delights in the fulness of love.