The Cosby Show, Season 1

Theo:
I mean, you're a doctor and Mom's a lawyer, but I don't love you any less because you're my dad. So instead of being disappointed that I'm not like you, maybe you should be happy and love me anyway, because I'm your son.

Cliff:
Theo... That's the dumbest thing I've ever heard in my life! No wonder you get D's in everything! You're afraid to try because you're afraid your brain is going to explode and it's going to ooze out of your ears. Now I'm telling you, you are going to try as hard as you can. And you're going to do it because I said so. I am your father. I brought you in this world, and I'll take you out!