Perhaps the heaviest attorney on the planet.
Certainly most influential based on what I have seen.
Trained in Special Forces, refused to go to Vietnam, was the lawyer arguing the First Amendment (Freedom of Speech) publishing the leaked Pentagon Papers on the front page of the New York Times.
Read the book A Theory of Justice by John Rawls
Went to the last lecture by Crane Brinton where he shared the Single Most Important Idea he ever discovered throughout his 43 year academic career studying the Intellectual (Western) History of Mankind.