“A locked big door always kneels down in front of its little key! Every giant has a weak side!”
“Every sides of the cube were keys, but only one door leads beyond them.”
“Key rings rattle throughout history. Each key, each lock has its tale.”
“If men are naturally in a state of war, why do they always carry arms and why do they have keys to lock their doors?”
“Every closed door isn't locked and even if it is...YOU just might have the key! Search within to unlock a world of possibilities!”
“If getting is the key to your happiness your key will open few doors. If giving is the key to your happiness you will find few doors locked.”