GL, "You really want to pick a fight with someone who can create anything he can think of?"
Batman, "I'd be worried if I thought you could think."  (Justice League #1)

About the Joker, "His modus operandi changes with the wind ... and it's been windy in Gotham City."  (Detective Comics #1)

"I'm trying to figure out what the Joker was doing naked ..." (Det. Comics #1)

CATWOMAN / SELINA KYLE

"I'm not sure I like doing anything unless it puts me out on the limb. 'Cuz that's where the fruit is."

"I'm your worst nightmare."  (Action Comics #1)