Even when opportunity knocks a man still has to get up off…

Opportunity knocks once at every man's door and then keeps on knocking.

— George Ade

Opportunity is often difficult to recognize; we usually expect it to beckon us with beepers and billboards.

— William Arthur Ward

I’ll keep it short and sweet. Family, religion, friendship. These are the three demons you must slay if you wish to succeed in business.…

— Charles Montgomery

When opportunity knocks, you have to open the door, with or without your confidence.

— Richard Dashut

They say when opportunity knocks you should let it in and invite it to sit at your table. F*** that -- when opportunity knocks,…

— Tracy Morgan

Don't be indifferent when opportunity knocks at the door, just invite it in

— Joe Sacco

Sometimes, you need a door slammed in your face before you can hear opportunity knock.

— James Geary

Opportunity knocks at every man's door once. On some men's door it hammers till it breaks down the door and then it goes in…

— Finley Peter Dunne

The world is filled with unfortunate souls who didn't hear opportunity knock at the door, because they were down at the convenience stor buying…

— Napoleon Hill

That old saying about opportunity only knocking once is as archaic as the flat-earth theory and as patently untrue. Opportunity knocks all the time…

— Victoria Moran

When opportunity knocks, invite it to stay for dinner.

— H. Jackson Brown, Jr

Some say opportunity knocks only once, that is not true. Opportunity knocks all the time, but you have to be ready for it. If…

— Louis L'Amour

If you never heard opportunity knock, maybe you're never at home.

— Marilyn vos Savant

You can see what man made from the seat of an automobile, but the best way to see what God made is from the…

— Charles Marion Russell

The reason so many people never get anywhere in life is because when opportunity knocks, they are out in the backyard looking for four-leaf…

— Anonymous