“Some one came knocking
At my wee, small door;
Some one came knocking,
I’m sure—sure—sure.”

“The soldier came knocking upon the queen's door,
He said "I am not fighting for you any more."”

“When you try to generate ideas, think of yourself as a sales person knocking on a whole subdivision of doors. Some won't open at all, some will open a suspicious crack, and some will slam in your face. But the more doors you knock on, the greater your chances of being invited in.”

“Potentiality knocks on the door of my heart. [On Seeing The 100% Perfect Girl One Beautiful April Morning ]”

“Perserverence is a great element of success. If you only knock long enough and loud enough at the gate, you are sure to wake up somebody.”

“The younger generation will come knocking at my door.”

“When I think about my relationship with America, I feel like a battered wife: Yeah, he knocks me around a lot, but boy, he sure can dance.”

“Don't simply knock and wait for the door to be opened. Go look for the keys. Some fit the lock better than others.”

“One of you guys is going to have to feed the vampiric lawyer some blood and it can’t be me. (Caleb)
Why? You afraid of a little bite?
I’m anemic. (Nick)
And I’m Catholic. Doesn’t that knock me out of the running? (Nick)”

“You can knock down kingdoms on a whim. What you need is someone to make sure you don't get hit by a carriage when you cross the street.”