What are famous lines from the movie Casablanca?

There are so many...

"Here's looking at you, kid."

"The problems of two people don't amount to a hill of beans in this world."

"I think this is the beginning of a beautiful friendship."

"We'll always have Paris."

"Round up the usual suspects."

Bogie never said, "Play it again, Sam." The line was actually, "You know what I want to hear"... and Sam doubts that Rick wants to hear that song, because it's their song. Rick growls, "Play it Sam!" Sam reluctantly plays As Time Goes By.

"Of all the gin joints, in all the towns, in all the world, she walks into mine."

"You played it for her. You can play it for me."

"If that plane leaves the ground and you're not with him, you'll regret it. Maybe not today, maybe not tomorrow, but soon. And for the rest of your life."