Frank J. Wilstach, comp. A Dictionary of Similes. 1916.
Obstinate
Obstinate as a discharged school-director.
—Anonymous
Obstinate as a mule.
—Anonymous
Obstinate as death.
—John Dryden
Obstinate as a pig, will neither lead nor drive.
—Thomas Fuller
Obstinate … like the corpse in the fable, threatening the driver of the hearse with vengeance dire at every gate of fatal charnel-house.
—Sigmund Krasinski
Obstinate as sin.
—August Strindberg