Unless
Who has not wanted, does not guess 
What plenty is.--Who has not groped 
In depths of doubt and hopelessness, 
Has never truly hoped.-- 
Unless, sometimes, a shaow falls 
Upon his mirth, and veils his sight, 
And from the darkness drifts the light 
Of love at intervals.
And that most dear of everything, 
I hold, is love; and who can sit 
With lightest heart and laugh and sing, 
Knows not the worth of it.-- 
Unless, in some strange throng, perchance, 
He feels how thrilling sweet it is, 
One yearning look that answers his --