III. To Hipparchia (p. 95)
Interesting here that Hipparchia is shown as the student of Diogenes, and it even suggests that letters were a common and prized method of instruction.  Seneca argues the opposite in some of his Epistles, that while they are better than nothing, a face to face discussion is best for philosophical instruction.

IV. To Antipater (p. 95)
I can’t imagine Diogenes begging the pardon of any King, except he be a philosopher.

V. To Pediccas (p. 97)
The parallel between worldy enemies, and enemies of the self is an interesting one.  Yet, the Ps-Diogenes also presents a binary.  One is either concerned in the world of appearances, or one is concerned with the world of appearances (more formidable).  The world, or philosophy.  Pick one, and then do the thing.

VI. To Crates (p. 97)
Ah, the cup lesson.  This is one of my favorite stories of Diogenes.  That he sees someone (field hand, boy, etc) drinking with his hands and tosses away his cup.

I like the closing moral, that wisdom might be garnered in any place, and from any teacher:  even if the person is unaware that they are teaching.  We’re constant students, nonetheless.

This is part of the Cynic Epistles Reading Plan.