The commonest error made in relation to poetry is that it consists simply in verse-making. Many confound the casket of meter and rhyme with the jewel of thought which it encloses, and, perhaps, in some instances, after close investigation, they have found the casket empty and turned away with feelings of disappointment and disgust.

The Poetical Writings of Orson F. Whitney: Poems and Poetic Prose (ed. 1889)