Intemperance in study is a species of intoxication, and those who indulge in it, like the drunkard, wander from safe paths and stumble and fall in the darkness. The Lord would have every student bear in mind that the eye must be kept single to the glory of God. He is not to exhaust and waste his physical and mental powers in seeking to acquire all possible knowledge of the sciences, but is to preserve the freshness and vigor of all his powers to engage in the work which the Lord has appointed him in helping souls to find the path of righteousness.... The command of heaven is to do, to work,—to do something that will reflect glory to God by being a benefit to our fellow men.... CT 405.3
The Lord does not choose or accept laborers according to the advantages they have enjoyed, or according to the superior education they have received. The value of the human agent is estimated according to the capacity of the heart to know and understand God.... The highest possible good is obtained through a knowledge of God. “This is life eternal, that they might know Thee the only true God, and Jesus Christ, whom Thou hast sent.” John 17:3. This knowledge is the secret spring from which flows all power.... CT 406.1