Whats the poem in book about The outsiders?

The following is the famous Robert Frost poem included in The Outsiders by S.E. Hinton (the poem also gives the book its title):

Nothing Gold Can Stay

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.