As a kid having to read Shakespeare what was lost on me, because of the language, was the language. Will worked hard to turn a phrase. "Cowards die many times before their deaths; The valiant never taste of death but once." "Some are born great, some achieve greatness, and some have greatness thrust upon them." "It is a tale told by an idiot, full of sound and fury, signifying nothing." "The very substance of the amb…
I wonder how many of the classic Shakespeare lines were actually popular idioms of the time rather than novel creations. I imagine if the works of only one contemporary cliche ridden author survived in 500 years time, they would appear to be a literary genius without the context that shows them to be mediocre.
It's not that his are the only works to have survived, they're simply the only ones we still speak of in regular conversation.