Page 296: "the still, sad music of humanity."

From page 296 of the book:  "Yes, you've made me very sad," Revenant repeated. "You know, I see the tears of Christ each time that I look into the soul of a desperate man. When I hear confessions I don't just tally the sins and hand out penance like Meroux distributes the meat across the counter, 'hearing oftentimes the still, sad music of humanity,'" the priest replied, chanting a quote from Wordsworth.

[Following is an excerpt from...
COMPOSED A FEW MILES ABOVE TINTERN ABBEY, ON REVISITING THE BANKS OF THE WYE DURING A TOUR. JULY 13, 1798.  (William Wordsworth)]

If this
      Be but a vain belief, yet, oh! how oft--                       
      In darkness and amid the many shapes
      Of joyless daylight; when the fretful stir
      Unprofitable, and the fever of the world,
      Have hung upon the beatings of my heart--
      How oft, in spirit, have I turned to thee,
      O sylvan Wye! thou wanderer thro' the woods,
      How often has my spirit turned to thee!
        And now, with gleams of half-extinguished thought,
      With many recognitions dim and faint,
      And somewhat of a sad perplexity,                              
      The picture of the mind revives again:
      While here I stand, not only with the sense
      Of present pleasure, but with pleasing thoughts
      That in this moment there is life and food
      For future years. And so I dare to hope,
      Though changed, no doubt, from what I was when first
      I came among these hills; when like a roe
      I bounded o'er the mountains, by the sides
      Of the deep rivers, and the lonely streams,
      Wherever nature led: more like a man                           
      Flying from something that he dreads, than one
      Who sought the thing he loved. For nature then
      (The coarser pleasures of my boyish days,
      And their glad animal movements all gone by)
      To me was all in all.--I cannot paint
      What then I was. The sounding cataract
      Haunted me like a passion: the tall rock,
      The mountain, and the deep and gloomy wood,
      Their colours and their forms, were then to me
      An appetite; a feeling and a love,                             
      That had no need of a remoter charm,
      By thought supplied, nor any interest
      Unborrowed from the eye.--That time is past,
      And all its aching joys are now no more,
      And all its dizzy raptures. Not for this
      Faint I, nor mourn nor murmur, other gifts
      Have followed; for such loss, I would believe,
      Abundant recompence. For I have learned
      To look on nature, not as in the hour
      Of thoughtless youth; but hearing oftentimes                   
      The still, sad music of humanity,      Nor harsh nor grating, though of ample power
      To chasten and subdue. And I have felt
      A presence that disturbs me with the joy
      Of elevated thoughts; a sense sublime
      Of something far more deeply interfused,
      Whose dwelling is the light of setting suns,
      And the round ocean and the living air,
      And the blue sky, and in the mind of man;
      A motion and a spirit, that impels                            
      All thinking things, all objects of all thought,
      And rolls through all things.