"God-fearing physicians speak modestly of their work, but novices with limited experience in dealing with the bodies and souls of men will often speak boastingly of their knowledge and attainments. These need a better understanding of themselves; then they would become more intelligent in regard to their duties and would realize that in every department where they have to labor they must possess a willing mind, an earnest spirit, and a hearty, unselfish zeal in trying to do others good. They will not study how best to preserve their dignity, but by thoughtfulness and caretaking will earn a reputation for thoroughness and exactitude, and by sympathetic ministry will gain the hearts of those whom they serve. CT 477.2"
"For I say, through the grace given unto me, to every man that is among you, not to think of himself more highly than he ought to think; but to think soberly, according as God hath dealt to every man the measure of faith."
Both passages address the importance of humility and avoiding pride, particularly in positions of authority or expertise. EGW applies this principle specifically to physicians, while Romans 12:3 is a more general exhortation.