Hokuto no Ken has like…the most cool stuff to quote ever.
Raoh: Toki...This is your Goken? I-It won't work...It won't work on me, Toki. It won't work, Toki...Do you still think I haven't realized the secret behind your Goken? If you were using your Juu no Ken free of disease, you probably would have beaten me! I pity you, Toki! Ever since we were children, you have continued to follow me and lived a cruel destiny, my younger brother! Farewell, Toki! The Shichousei falls over your head!
I could quote more...but those entire two episodes were made of win. The stuff in his final battle with Kenshiro was the best, though.
Raoh: Pain should feel satisfying...I, Raoh, no longer need the name Kenoh, Fist King! I shall become a Maoh, a Devil King, and sink you flat in a sea of blood!!
And of course, this (which I think was already quoted in the thread):
Raoh: I, Raoh, need not the help of others to return to the heavens! Farewell...I am once again returning to the heavens...I have not one shred of regret in my life!!!