Chi Meson said:
One of the main things I noticed (i saw a few of his freshman lectures, and a portion of his QED lectures in NZ before they got sued off of Youtube) is that his actual lectures are no where near as good as the "cleaned up" printed version. That stands to reason, since with editing you can make plenty of changes retroactively. Feynman did his thing "off the cuff" with very few notes.
He took a "Cicero", then!
Cicero tended to revise his speeches extensively before publishing them.
When trying to defend the obviously guilty Milo in the murder case of Clodius, Cicero mumbled and stammered basically ensuring Milo's conviction. It may be that Cicero did this deliberately, since Pompey had pressured him into taking on this case, whereas Cicero already had made a staunch line AGAINST Milo. Thus, Cicero was seen as a weakling, however he had reacted.
Anyhow, Milo went into exile to Massilia (Marseilles).
As Cicero revised his speech and sent it to Milo, he got the curt reply:
"I am SO glad you didn't hold that speech, Marcus, for had you done so, I wouldn't have got to know the delicious oysters here in Massilia".
Ok, this WAS irrelevant, sorry!