Goku and Frieza in “Unfinished Business”

Your energy level is decreasing with every blow. In fact, you're not even a challenge to me anymore. It wouldn't be fair for me to keep fighting you. I'm satisfied now. Your pride has been torn to shreds. You've challenged and lost to a fighter who is superior to you and to make it worse, he's just a monkey, right? It would be meaningless to fight you now, you're too scared and ashamed. Live with the shock. Keep it bottled up inside you. Silently. Goodbye, Frieza, never do mischief again. May you live the rest of your life in peace.

Peace? Nonsense! Never! I will never...never be defeated! [Frieza throws his disc attack at Goku]