I have two favourite quotes from Part I; I can't think of anything else in the Trilogy that I like more.

Quote I:

"..... But I'm a superstitious man -- and if some unlucky accident should befall him -- if he should get shot in the head by a police officer -- or if he -- should hang himself in his jail cell -- or if he's struck by a bolt of lightning -- then I'm going to blame some of the people in this room. And that, I do not forgive..." (Do you guys feel the Chill?)

Qutoe II:

"..I knew that Santino was going to have to go through all this. And Fredo -- well --

(then, after he sits besides Michael)

-- Fredo was -- well -- But I never -- I never wanted this for you. I work my whole life, I don't apologize, to take care of my family. And I refused -- to be a fool -- dancing on the string, held by all those -- bigshots. I don't apologize -- that's my life -- but I thought that -- that when it was your time -- that -- that you would be the one to hold the strings."