 A dialogue of definition, the Euthyphro takes up the subject of reverence or piety, a virtue that traditionally bears on the keeping of oaths, the treatment of the weak (such as prisoners and suppliants), family relationships, and respect toward the gods. The discussion here lifts reverence out of its traditional context, while marking sharply the difference between reasoning about ethics and accepting authority. The argument as a whole may imply support for the  unity of virtue.