I Have Labored

I have labored so long... now past half a century... and, like a very old bird, I am still at my song. And, like the lark in the meadow, I have little to show for all of the work I have done. But my throat was constructed for singing so I have sung with no thought for tomorrow. I have lifted my voice just like all those who've gone before me... and I will continue to do so till my skin goes suddenly cold under the sun.