The Oxen and the Axle-Trees

A heavy wagon was being dragged along a country lane by a team of Oxen.  The Axle-trees groaned and creaked terribly; whereupon the Oxen, turning round, thus addressed the wheels:  "Hullo there! why do you make so much noise? We bear all the labor, and we, not you, ought to cry out." 

Those who suffer most cry out the least.