Some poets have considered free verse restrictive in its own way. In 1922,
Robert Bridges voiced his reservations in the essay "
Humdrum and Harum-Scarum".
Robert Frost, in a comment regarding
Carl Sandburg, later remarked that writing free verse was like "playing tennis without a net." Sandburg responded saying, in part, "There have been poets who could and did play more than one game of tennis with unseen rackets, volleying airy and fantastic balls over an
