There was the following sentence in New York Times’ article (February 28) titled “What you learn at 40s.”:
"Victor Hugo supposedly called 40 “the old age of youth.” - - The conventional wisdom is that you’re still reasonably young, but that everything is declining: health, fertility, the certainty that you will one day read “Hamlet” and know how to cook leeks. Among my peers there’s a now-or-never mood: We still have time for a second act, but we’d better get moving on it." http://www.nytimes.com/2014/03/01/opinion/sunday/what-you-learn-in-your-40s.html?hp&rref=opinion&_r=0
What does the line -“Read Hamlet and know how to cook leeks” mean? Is “Know how to cook leeks” an idiom, for instance, to mean to get 'the worldly knowledge'?
Readers English Japanese Dictionary at hand carries “eat the leek” and “not worth a leek” as idioms, but don’t include “know how to cook leeks.”