I took a piece of plastic clay
And idly fashioned it one day;
And as my fingers pressed it still
It moved and yielded at my will.

I came again when days were past,
The form I gave it still it bore,
And as my fingers pressed it still,
I could change that form no more.

I took a piece of living clay,
And gently formed it day by day,
And molded with my power and art,
A young child's soft and yielding heart.

I came again when days were gone;
It was a man I looked upon,
He still that early impress bore,
And I could change it never more.

Source unknown