I am trusted with a muzzle and enfranchised with a clog; therefore I have decreed not to sing in my cage.
(William Shakespeare (1564-1616), British dramatist, poet. Don John, in Much Ado About Nothing, act 1, sc. 3, l. 32-3.
Although treated generously by his brother Don Pedro, after fighting as his enemy, Don John grudgingly compares himself to a muzzled or hobbled animal, or a caged bird.)