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.
Robert Frost, Nothing Gold Can Stay

Only lovers
see the fall
a signal end to endings
a gruffish gesture alerting
those who will not be alarmed
that we begin to stop
in order to begin
again.
Maya Angelou, Late October

Come, I'll trace you one final autumn,
and you can trace your last homecoming
into the snow or the sun.
Annie Finch, Final Autumn

Harvest Moon, Neil Young

So Far Away, Carole King

We May Never Pass This Way (Again), Seals and Crofts