Respectfully Quoted: A Dictionary of Quotations. 1989.
Henry Van Dyke (18521933)
Four things a man must learn to do If he would make his record true: To think without confusion clearly; To love his fellow-men sincerely; To act from honest motives purely; To trust in God and Heaven securely.
HENRY VAN DYKE, Four Things, Poems, vol. 1 (vol. 9 of The Works of Henry Van Dyke), p. 277 (1920).