I envy not in any moods 
The captive void of noble rage, 
The linnet born within the cage, 
That never knew the summer woods: 
 
I envy not the beast that takes 
His license in the field of time, 
Unfetter'd by the sense of crime, 
To whom a conscience never wakes; 
 
Nor, what may count itself as blest, 
The heart that never plighted troth 
But stagnates in the weeds of sloth; 
Nor any want-begotten rest. 
 
I hold it true, whate'er befall; 
I feel it, when I sorrow most; 
'Tis better to have loved and lost 
Than never to have loved at all.
Alfred Lord Tennyson
http://www.poemhunter.com/poem/in-memoriam-16-i-envy-not-in-any-moods/