1
general::
People will keep on hoping, no matter what the odds. For example, I keep buying lottery tickets? hope springs eternal. This expression was coined by Alexander Pope (An Essay on Man, 1732) and quickly became proverbial.
American Heritage Idioms
2
general::
Phrase(s): Hope springs eternal (in the human breast).
Prov. People will continue to hope even though they have evidence that things cannot possibly turn out the way they want. (From Alexander Pope’s poem, "Essay on Man." Sometimes used to remark that you believe someone’s situation is hopeless, as in the first example.) • Jill: The boss may have turned me down the first twelve times I asked for a raise, but this time I really think she’ll give it to me. Jane: Hope springs eternal in the human breast. • Alan: You’re not still trying to teach the dog to shake hands! Jane: Hope springs eternal.
McGrawhill's American Idioms And Phrasal Verbs