Eloquence is a serious thing. You cannot say that a discourse, or a paragraph, is very amusing and very eloquent. The speaker who is to deserve this high name must have moral earnestness. He may sometimes indulge, where it is appropriate, in the light play of delicate humor, or give forth sparks of wit, but these must be entirely incidental, and subordinate to a thorough seriousness and earnestness.
On the Preparation and Delivery of Sermons