For in much wisdom is much grief: and he that increases knowledge increases sorrow.
All Commentaries on Ecclesiastes 1:18 Go To Ecclesiastes 1
Augustine of Hippo
AD 430
People are accustomed to set a high value on the knowledge of earthly and celestial things. But they are certainly better who prefer the knowledge of themselves to this knowledge. And a mind to which even its own weakness is known is more deserving of praise than one that … is ignorant of the course by which it must proceed to reach its own true health and strength. But one who has been aroused by the warmth of the Holy Spirit … has already awakened to God. In his love for [God, such a person] has already felt his own unworthiness and is willing but is not yet strong enough to come to him. And through the light received from [God, this person] takes heed to himself and finds that his own defilement cannot mingle with his purity. [This person] feels it sweet to weep and to beseech God that he may again and again have pity until he has cast off all his misery. [This person also prays] with confidence as having already received the free gift of salvation through his only Savior and enlightener of humankind. For one who so acts and laments, knowledge does not puff up because charity edifies. He has preferred the one knowledge to the other knowledge; he has preferred to know his own weakness more than to know the walls of the world, the foundations of the earth, and the heights of the heavens. And by acquiring this knowledge he has acquired sorrow, the sorrow arising from his wandering away from the desire of his own true country, and from its founder, his own blessed God. On the Trinity , Preface.
