No, helpless thing, I cannot harm thee now; 
Depart in peace, thy little life is safe,
For I have scanned thy form with curious eye,
Noted the silver line that streaks thy back,
The azure and the orange that divide 
Thy velvet sides; thee, houseless wanderer,
My garment has enfolded, and my arm
Felt the light pressure of thy hairy feet;
Thou hast curled round my finger; from its tip,
Precipitous descent! with stretched out neck,
Bending thy head in airy vacancy,
This way and that, inquiring, thou hast seemed
To ask protection; now, I cannot kill thee.
Yet I have sworn perdition to thy race,
And recent from the slaughter am I come
Of tribes and embryo nations: I have sought
With sharpened eye and persecuting zeal,
Where, folded in their silken webs they lay
Thriving and happy; swept them from the tree
And crushed whole families beneath my foot;
Or, sudden, poured on their devoted heads 
The vials of destruction.--This I've done
Nor felt the touch of pity: but when thou,--
A single wretch, escaped the general doom,
Making me feel and clearly recognise
Thine individual existence, life,
And fellowship of sense with all that breathes,--
Present'st thyself before me, I relent,
And cannot hurt thy weakness.--So the storm
Of horrid war, o'erwhelming cities, fields,
And peaceful villages, rolls dreadful on:
The victor shouts triumphant; he enjoys 
The roar of cannon and the clang of arms,
And urges, by no soft relentings stopped,
The work of death and carnage. Yet should one,
A single sufferer from the field escaped,
Panting and pale, and bleeding at his feet,
Lift his imploring eyes,-- the hero weeps;
He is grown human, and capricious Pity,
Which would not stir for thousands, melts for one
With sympathy spontaneous:-- 'Tis not Virtue,
Yet 'tis the weakness of a virtuous mind.