Victor Hugo,
Les Misérables — Volume 4, Book Ninth…
“ The wretchedness of a child interests a mother, the wretchedness of a young man interests a young girl, the wretchedness of an old man interests no one. It is, of all distresses, the coldest. Still, Father Mabeuf had not entirely lost his childlike serenity. His eyes acquired some vivacity when they rested on his books, and he smiled when he gazed at the Diogenes Laertius, which was a unique copy. ”
