"The Human Seasons"

Four Seasons fill the measure of the year;
There are four seasons in the mind of man:
Has has his lusty Spring, when fancy clear
Takes in all beauty with an easy span:
He has his Summer, when luxuriously
Spring's honey'd cud of youthful thought he loves
To ruminate, and by such dreaming high
Is nearest unto Heaven: quiet coves
His soul has in its Autumn, when his wings
He furleth close; contented so to look
On mists in idleness -- to let fair things
Pass by unheeded as a threshold brook.
He has his Winter too of pale misfeature,
Or else he would forgo his moral nature.

-- John Keats