Favorite Speakers?

[Arjahn]

This is sort of an odd one, but who are your favorite speakers? By which I mean people who speak/spoke their mind on stuff and you like listening to. Feel free to post a video with 'em too.
For me, i've got to go with Bill Hicks and Neil Degrasse Tyson,

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[SERIOUSLY THOUGH]

My favourite speakers are Bose lOLolOLoOlOLyOLO5WAGlol


But teriously sough, most of my favourite speakers are parliamentarians - especially the ones from the past. Especially because it's very hard to give a rousing speech somewhere where no-one seems to like you