Diogenes the Cynic was truly a philosopher.

Sources:
The Dangerous Life and Ideas of Diogenes the Cynic
The Cynic Philosophers
Lives and Opinions of Eminent Philosophers

Chapters:
00:00 Intro
00:32 Anecdotes
03:27 Life before philosophy
06:01 Cynic Philosophy
07:44 Money
10:43 The Body
11:05 Freedom of Speech
11:35 Cosmopolitanism
12:01 Life as a philosopher in Athens
14:58 Pirates
16:28 Death
17:45 The Legacy of Cynicism