A los amigos invisibles, esos que huyeron

"Alas! they had been friends in youth: 
 
But whispering tongues can poison truth;

And constancy lives in realms above;

And life is thorny; and youth is vain;
And to be wroth with one we love, 
 
Doth work like madness in the brain; 
 

But never either found another 

To free the hollow heart from paining

They stood aloof, the scars remaining. 

Like cliffs which had been rent asunder;

A dreary sea now flows between, 
 
But neither heat, nor frost, nor thunder, 

Shall wholly do away, I ween, 
 
The marks of that which once hath been." 
 

Coleridge, Christabel.