“Jealousy is the lock that closes your heart, understanding is the key that opens it.”
“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.”
“Music acts like a magic key, to which the most tightly closed heart opens.”
“Either the key to a man's wallet is in his heart, or the key to a man's heart is in his wallet. So, unless you express your charity, you are locked inside your greed.”
“This is your heart. Keep it locked until the chap turns up who has the key.”
“While parents possess the original key to their offspring's experience, teachers have a spare key. They, too, can open or close the minds and hearts of children.”