
“If opportunity doesn't knock, build a door”
Variant: If opportunity doesn’t knock, build a door.
The Road to Freedom is via the Cross (1952)
“If opportunity doesn't knock, build a door”
Variant: If opportunity doesn’t knock, build a door.
This 'n that (1987) by Bette Davis and Mickey Herskowitz. Putnam's. p. 98. ISBN 0399132465.
As quoted in " Recovering from Apartheid http://www.newyorker.com/archive/1996/11/18/1996_11_18_086_TNY_CARDS_000375852" at The New Yorker (18 November 1996)
2010s, 2016, Democratic Presidential Debate in Milwaukee, Wisconsin (11 February 2016)
“Opportunity may knock only once but temptation leans on the door bell”
Source: Oprah Winfrey Speaks: Insights from the World's Most Influential Voice
"Rational Rationing vs. Irrational Rationing" http://www.huffingtonpost.com/jacob-m-appel/rational-rationing-vs-irr_b_622057.html, The Huffington Post (2010-06-23)
As quoted in His Brother's Blood: Speeches and Writings, 1838–64 https://books.google.com/books?id=qMEv8DNXVbIC&pg=PA241 (2004), edited by William Frederick Moore and Jane Ann Moore, p. 241
1860s, Speech (October 1860)
(Probably 1918) Margaret MacMillan, Paris 1919 : Six Months That Changed the World, Random House Trade Paperbacks, 2003, ISBN 0375760520, p. 211.
Attributed