Trouble is an exerciser 
Sent us by a Wisdom wiser 
Than the mind of man possesses. 
Doubts and dangers and distresses 
Come not purposely to best us, 
But to strengthen us and test us. 
 
He who never gets In tussles 
Soon has soft and flabby muscles. 
He who, fearing hurts and bruises. 
Guards his strength, grows weak and loses 
All the power he thought to nourish. 
Strong men by their trials flourish. 
 
Never was a stately figure 
But by trouble was made bigger. 
Cares a man has borne, and still bears. 
Trove how much he can and will bear. 
He Is strongest of your neighbors 
Who performs the heaviest labors. 
 
Not from easy ways and tender 
Brilliant minds receive their splendor. 
But from problems deep, perplexing, 
And from solving questions vexing, 
(Nightly pondering wisdom's pages) 
Comes the luster of the sages. 
 
Trouble is an exerciser 
Sent to make us stronger, wiser. 
Sent to make us bigger, better: 
It Is not a chain or fetter 
Or a snare or trap to best us, 
It is Just life's way to test us.
Edgar Albert Guest
http://www.poemhunter.com/poem/trouble-38/