Pretty much every show I've worked on has had at least one line that resonated with me as relevant, funny, or memorable. Here I shall list them.
haven't found him yet;
he's the big affair I cannot forget.
Only man I ever think of with regret." Kay
Lancelot: Knight's gathering flowers, Your Majesty?
Arthur: Someone has to do it.
Lancelot: But with so much to be done?
Arthur: Precisely because there is so much to be done.
"My dear little librarian, You pile up enough tomorrows, and you'll find you are left with nothing but a lot of empty yesterdays." Harold Hill
"Take him, but don't ever let him take you." Vera
Wizard of Oz
"Hearts will never be practical until they can be made unbreakable." Wizard.