If you haven’t read Euthyphro, then you should. If you have read it, then you should read it again.
In this early Platonic dialogue, Socrates encounters a young man named Euthyphro, who intends to drag his own father into court and charge him with impiety. This opens up a discussion of what piety is, as well as whether or not the know-it-all Euthyphro should submit to tradition, which tends to frown upon sons attacking their sires. In addition to investigating piety, the dialogue also illustrates the art of dialectic — i.e., rational discussion.
Via the Chronicles website, Thomas Fleming will be leading a discussion of this classic work.