noun, plural op·por·tu·ni·ties.
i) an appropriate or favorable time or occasion: e.g Their meeting afforded an opportunity to exchange views.
ii) a situation or condition favorable for attainment of a goal.
iii) a good position, chance, or prospect, as for advancement or success.
Often defies objectivity, as perspective varies. Many attribute success to it. Many also see it as what failure offers.
Failure is simply the opportunity to begin again, this time more intelligently - Henry Ford
Does not always look like what is needed. It (opportunity) often shows up disguised, confused for something else, work, stress, more responsibility.
Opportunity is missed by most people because it is dressed in overalls and looks like work. - Thomas Edison
While it is true that some had opportunity granted them by parentage, some were not.
However, it would be unwise to leave the opportunity to chance or fate. Many fail to accept the fact that opportunities can be created or prepared for. They leave the opportunity to chance.
It ought not to be.
Hard work, increased skill set creates and prepares one for opportunities.
Deliberate motions often create more opportunities.
Importunity creates opportunity.
"If opportunity doesn't knock, build a door" - Milton Berle