The shadow by my finger cast
Divides the future from the past:
Before it, sleeps the unborn hour
In darkness, and beyond thy power:
Behind its unreturning line,
The vanished hour, no longer thine:
One hour alone is in thy hands,--
The NOW on which the shadow stands.
Henry Van Dyke
http://www.poemhunter.com/poem/the-sun-dial-at-wells-college/
