religious words, than to infuse the spirit of religion into all our words; and if the whole tenor of your common talk be pervaded by a spirit of piety, gentleness, earnestness, sincerity, it will be Christian conversation not the less. If God has endowed you with intellectual gifts, it may be well if you directly devote them to His service in the religious instruction; but a man may be a Christian thinker and writer as much when giving to science, or history, or biography, or poetry, a Christian tone and spirit, as when composing sermons or writing hymns. To promote the cause of Christ directly, by furthering every religious and missionary enterprise at home and abroad, is undoubtedly your duty; but remember that your duty terminates not when you have done all this, for you may promote Christ's cause even still more effectually when in your daily demeanor--in the family, in society, in your business transactions, in all your common intercourse with the world--you are diffusing the influence of Christian principle around you by the silent eloquence of a holy life. Rise superior, in Christ's strength, to all equivocal practises and advantages in trade; shrink from every approach to meanness or dishonesty; let your eye, fixed on a reward before which earthly wealth grows dim, beam with honor; let the thought of God make you self-restrained, temperate, watchful over speech and conduct; let the abiding sense of Christ's redeeming love to you make you gentle, self-denying, kind, and loving to all around you;--then indeed will your secular life become spiritualized, whilst, at the same time, your spiritual life will grow more fervent; then not only will your prayers become more devout, but when the knee bends not, and the lip is silent, the life in its heavenward tone will "pray without ceasing;" then from amidst the roar and din of earthly toil the ear of God will hear the sweetest anthems rising; then, finally, will your daily experience prove that it is no high and unattainable elevation of virtue, but a simple and natural thing, to which the text points, when it bids us to be both "diligent in business" and "fervent in spirit, serving the Lord." As a last illustration of the possibility of blending religion with the business of common life, let me call your attention to what may be described as the mind's power of acting on latent principles.