If you be a master that have to advertise a runaway apprentice, though the young dog's faults are known only to you, and no doubt his conduct has been aggravating enough, do not presently set him down as having crooked ankles.

He may have a good pair of legs, and run away notwithstanding.

Indeed, the latter does rather seem to imply the former.
3.

If the unhappy person against whom your laudable vengeance is directed be a thief, think that a thief may have a good nose, good eyes, good ears.

It is indispensable to his profession that he be possessed of sagacity, foresight, vigilance; it is more than probable, then, that he is endued with the bodily types or instruments of these qualities to some tolerable degree of perfectness.
4.