Opportunities fly by while we sit regretting the chances we have lost.
— Jerome Jerome
When God shuts a door, He opens a window.
— John Ruskin
While you wait for great things, the door to little ones may close.
Opportunity does not knock; it presents itself when you beat down the door.
— Kyle Chandler
It seems to me that we often, almost sulkily, reject the good that God offers us because, at the moment, we expected some other good.
— C.S. Lewis