Lectures on Theology, with a Memoir by Rev. Nahum Gale (Boston: J. E. Tilton & Company, 1859), Memoir, Tyler's farewell address to the alumni of the Theological Institute of Connecticut, p. 82

Preach the doctrines of the gospel, not in a dry, speculative manner, but preach them practically. Apply the truth closely to the hearts and consciences of your hearers, and show them the bearing which it has upon their…