Oh, it's by Robert Browning (jr., the star of the upcoming Sherlock Holmes movie - not!)
You can also take it to the next level and learn it by heart. It's short. You can impress people in the early morning hours. Give them chills, too. But, remember, saying it aloud is the trick.
The year's at the spring;
The day's at the morn,
Morning's at seven;
The hill-side's dew-pearled;
The lark's on the wing;
The snail's on the thorn;
God's in His heaven -
All's right with the world.
Of course the cynic in me (and, having read some of Browning's other poems, I think the cynic in him, too) points out that it won't and can't last.
And yet, that not-lasting-ness off the moment is what makes it so poignant. (Also, Greek story style, things are only right with the world when the gods butt out of human affairs.)