J.H. Thornwell (Collected Writings, vol. 2, p. 465):
How coarse and degrading, by the side of this doctrine, do those views of Happiness appear which make it consist in pleasure! which, instead of setting man upon the improvement of himself, the perfection of his nature and the expansion of his energies in communion with God, send him in quest of the beggarly elements of earth, which all are to perish in the using! There cannot be a greater obstruction to the pursuit of real happiness than the love of pleasure. It relaxes and debilitates the mind, destroys the tone of the spirit, superinduces languor upon all the faculties; it is the grave of energy. Hence is that of Scripture: She that liveth in pleasure is dead while she liveth. If Happiness is an adumbration of the blessedness of God—and it must be so—if it is the glory of man to bear the image of God, the whole subject is manifestly degraded when it is reduced to the analogy of the enjoyment of a brute.