Full Idea
Diogenes said that the most excellent thing among men was freedom of speech.
Gist of Idea
Diogenes said that the most excellent thing among men was freedom of speech
Source
report of Diogenes (Sin) (reports [c.360 BCE]) by Diogenes Laertius - Lives of Eminent Philosophers 06.Di.6
Book Reference
Diogenes Laertius: 'Diogenes Laertius', ed/tr. Yonge,C.D. [Henry G. Bohn 1853], p.243