MAN IN THE ARENA | Elon Musk - YouTube
Narrated by Lex Friedman (AI researcher working on autonomous vehicles, human-robot interaction, and machine learning at MIT and beyond)
Playing Guitar in a Self-Driving Car - YouTube
Man in the Arena Speech by Theodore Roosevelt with Audio, Read by John F. Kennedy - YouTube
Citizenship in a Republic - Wikipedia
Citizenship in a Republic is the title of a speech given by Theodore Roosevelt, former President of the United States, at the Sorbonne in Paris, France, on April 23, 1910.[1]
One notable passage from the speech is referred to as "The Man in the Arena":[2][3]
Someone who is heavily involved in a situation that requires courage, skill, or tenacity (as opposed to someone sitting on the sidelines and watching), is sometimes referred to as "the man in the arena".
Citizenship in a Republic: The Man in the Arena - Theodore Roosevelt @ LeadershipNow