Ministers should devote time to reading, to study, to meditation and prayer. They should store the mind with useful knowledge, committing to memory portions of Scripture, tracing out the fulfilment of the prophecies, and learning the lessons which Christ gave His disciples. Take a book with you to read when traveling on the cars or waiting in the railway station. Employ every spare moment in doing something. In this way an effectual door will be closed against a thousand temptations.... GW 278.4
Many have failed, signally failed, where they might have made a success. They have not felt the burden of the work; they have taken things as leisurely as if they had a temporal millennium in which to work for the salvation of souls.... The cause of God is not so much in need of preachers as of earnest, persevering workers for the Master. God alone can measure the powers of the human mind. It was not His design that man should be content to remain in the lowlands of ignorance, but that he should secure all the advantages of an enlightened, cultivated intellect. GW 279.1
Every one should feel that there rests upon him an obligation to reach the height of intellectual greatness. While none should be puffed up because of the knowledge they have acquired, it is the privilege of all to enjoy the satisfaction of knowing that with every advance step they are rendered more capable of honoring and glorifying God. They may draw from an inexhaustible fountain, the Source of all wisdom and knowledge. GW 279.2
Having entered the school of Christ, the student is prepared to engage in the pursuit of knowledge without becoming dizzy from the height to which he is climbing. As he goes on from truth to truth, obtaining clearer and brighter views of the wonderful laws of science and of nature, he becomes enraptured with the amazing exhibitions of God's love to man. He sees with intelligent eyes the perfection, knowledge, and wisdom of God stretching beyond into infinity. As his mind enlarges and expands, pure streams of light pour into his soul. The more he drinks from the fountain of knowledge, the purer and happier his contemplation of God's infinity, and the greater his longing for wisdom sufficient to comprehend the deep things of God. GW 279.3