Composed on March 13, 1818 by John Keats, and published in 1848.

Four seasons fill the measure of the year;
     There are four seasons in the mind of man:
He 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 forego his mortal nature.