[after he attacks Goku's immobilized body] Being a good fiend is like being a photographer. You have to wait for the right moment.
You put my dad down right now!
Ha ha. Oh no...it's you. Please don't hurt me. I'll do anything you say. I'll put your father down if you want, it might be one piece at a time, but I'll definitely put him down. Ha ha ha ha. Now, which piece would you like first?
You better not hurt him!
It's a little too late for that...ha ha ha ha!
[to Krillin] Did you really think you could sneak up on me little man? Did you really think that you could fool me with such a simple ruse? Like I'd believe for a second that Kakarot's son came back to finish me all alone. Ha! I knew from the instant I saw him that he was merely trying to distract me from the real threat. You'll have to do better next time, except there won't be a next time. You're finished. As soon as I'm done squeezing the life from Kakarot, you're next.
[to himself, after cutting off Vegeta's tail] I must be out of my mind. I couldn't've picked a worse time to decide to be brave.
[to Gohan] You're a low class scum just like your father!
These quotes come from Wikiquote's Dragon Ball Z pages and are available under the Creative Commons Attribution-ShareAlike License.