William Cowper Quote

He sees that this great roundabout
The world, with all its motley rout,
Church, army, physic, law,
Its customs and its businesses,
Is no concern at all of his,
And says—what says he?—Caw.

The Jackdaw (translation from Vincent Bourne). - Bartlett's Familiar Quotations, 10th ed. (1919)