Nothing, nothing can be a substitute for purity and virtue. Man will always try to find substitutes for it. He will try to find a substitute in superstition, in forms and ceremonies, in voluntary humility and worship of angels, in using vain repetitions, and fancying he will be heard for his much speaking; he will try to find a substitute in intellect, and the worship of intellect and art and poetry, . . . but let no man lay that flattering unction to his soul.

Sermons on David. 1866.