Opportunity does not knock, it presents itself when you beat down the door

Remind You To Believe In Yourself

Success doesn’t just fall in your lap. You have to get up, do the work, and go find it.

Opportunity does not knock, it presents itself when you beat down the door. - Kyle Chandler

Source: http://www.lifehack.org/articles/communication/30-motivational-quotes-remind-you-believe-yourself.html