I love this one. Moore had an interesting life.

Wordsworth to the contrary notwithstanding,
Milton's and Shakespeare's statements also doubted:
A sonnet's force is not so easily routed
That flying one should not seek the safest landing.

As much as anything, a magic word
Is what a sonnet is, that quickly falls
If touched indelicately or shaken hard,
Or if it be reared too heavy or too tall.

Sonnets possess impertinence; they have bliss,
They require excitement in at least one line,
They need specific gravity and this
Especially is important—to be in focus;

Rarely a sonnet deserves to be exhibited;
Most of them should be (and they are) inhibited.
(Bender, p. 454)