Superman IV: The Quest for Peace (1987)

Lex Luthor: He gets his energy from the sun. Without it, he's like you at night - useless.

Lex Luthor: Destroy Superman!
Nuclear Man: First, I have fun.

Lex Luthor: You know what I can do with a single strand of Superman's hair?
Lenny: You can make a toupee that flies.

Superman: You'd risk world wide nuclear war for your own personal financial gain.
Lex Luthor: Nobody wants war. I just want to keep the threat alive.

Lex Luthor: Lenny, let's try and keep your IQ a family secret.

Lex Luthor: Lenny, I've always considered you the Dutch Elm disease in my family tree.