Goku: You know, I never understood how people can delight in hurting others. You see when you take life, you live in fear because deep down you know that someday your life will be taken as well...

Goku: It’s simple. If you want good things to happen in your life… you have to be good!

Vegeta: I would listen to him if I were you. More often than not the things Kakarot says come to pass! But I know it’s going to take more than talk to change your mind, I had to learn the hard way myself.