“When I want something to happen — or not happen — I begin to look at all events and all things as relevant, an opportunity to take or avoid.
I found the opportunity.”

[Laura Schmitt, 2000, May, An interview with Gordon Moore, Ingenuity, 5, 2, http://www.ece.uiuc.edu/ingenuity/500/mooreint.html, 2006-11-06]

The Complete Neurotic's Notebook (1981), Unclassified

Has been attributed to Seneca since the 1990s (eg. Gregory K. Ericksen, (1999), Women entrepreneurs only: 12 women entrepreneurs tell the stories of their success, page ix.). Other books ascribe the saying to either Darrell K. Royal (former American football player, born 1924) or Elmer G. Letterman (Insurance salesman and writer, 1897-1982). However, it is unlikely either man originated the saying. A version that reads "He is lucky who realizes that luck is the point where preparation meets opportunity" can be found (unattributed) in the 1912 The Youth's Companion: Volume 86. The quote might be a distortion of the following passage by Seneca (who makes no mention of "luck" and is in fact quoting his friend Demetrius the Cynic):<blockquote>"The best wrestler," he would say, "is not he who has learned thoroughly all the tricks and twists of the art, which are seldom met with in actual wrestling, but he who has well and carefully trained himself in one or two of them, and watches keenly for an opportunity of practising them." — Seneca, On Benefits, vii. 1 http://thriceholy.net/Texts/Benefits4.html</blockquote>
Disputed

Source: What Happened to Goodbye

Source: In a Pit with a Lion on a Snowy Day: How to Survive and Thrive When Opportunity Roars

Source: Sebastian

2000s, To Live Beyond Our Fear (2007)
Context: We have this window of opportunity; we have a chance to make something real happen. Something possible happen, to live beyond our fear — think about that, and help us. Help lift us up, help us fight this fight to change — transform — this country in a fundamental way.
This chance won’t come around again.

Naman Ramachandran, in Rajinikanth: The Definitive Biography (15 January 2014) http://books.google.co.in/books?id=3mzyPGSfwKMC&printsec=frontcover#v=onepage&q&f=false, page before preface.

Progress In Religion (2000)
Context: Our grey technology of machines and computers will not disappear, but green technology will be moving ahead even faster. Green technology can be cleaner, more flexible and less wasteful, than our existing chemical industries. A great variety of manufactured objects could be grown instead of made. Green technology could supply human needs with far less damage to the natural environment. And green technology could be a great equalizer, bringing wealth to the tropical areas of the world which have most of the sunshine, most of the human population, and most of the poverty. I am saying that green technology could do all these good things, bringing wealth to the tropics, bringing economic opportunity to the villages, narrowing the gap between rich and poor. I am not saying that green technology will do all these good things. "Could" is not the same as "will". To make these good things happen, we need not only the new technology but the political and economic conditions that will give people all over the world a chance to use it. To make these things happen, we need a powerful push from ethics. We need a consensus of public opinion around the world that the existing gross inequalities in the distribution of wealth are intolerable. In reaching such a consensus, religions must play an essential role. Neither technology alone nor religion alone is powerful enough to bring social justice to human societies, but technology and religion working together might do the job.