Nature's first green is gold,
Her hardest hue to hold.
Her early leaf's a flower;
But only so an hour.
Then leaf subsides to leaf.
So Eden sank to grief,
So dawn goes down to day.
Nothing gold can stay.
The Downfall of Paradise 
 Even the  Garden of Eden , an idyllic paradise, fell to corruption. 
 
 So the story goes: 
 As a result of a serpent’s cunning, Eve ate from the  Tree of Knowledge , against God’s specific instructions. 
 
 The consequences, according to the Torah/Bible, are as follows… 1. Adam and Eve were kicked out of the Garden of Eden permanently. 2. The serpent and all of its descendants would live on their stomachs for eternity. 3. Women would have pain in childbirth. 4. Men would have to work the fields in order to attain food. Clearly, these weren’t minor consequences. 
 The allusion to this story (regardless of any truth or religious affiliation) indicates that even the most “perfect” place can only last for so long.  By nature, everything will always fall.  (Scientists call this theory  entropy ).
Nothing Gold Can Stay