“Keys, they make it easier to get in and out of doors. So does invisibility.”

“The purpose of poetry is to remind ushow difficult it is to remain just one person,for our house is open, there are no keys in the doors, and invisible guests come in and out at will.”

“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.”

“Make the doors upon a woman's wit,and it will out at the casement;shut that, and 'twill out at the key-hole;stop that, 'twill fly with the smoke out at the chimney.”

“A brick could be used as a key to unlock a door disguised as a brick wall. The security in the lock lies not with a one-of-a-kind key, but with a key that looks like hundreds of other potential keys that make up the door.
”

“Many never realize they always had the key in their pocket, so they die at the locked door, never reaching deep inside to pull it out.”