Victor Hugo,
Les Misérables — Volume 5, Book Fifth…
“ The head which does not turn backwards towards horizons that have vanished contains neither thought nor love. At times, Marius clasped his face between his hands, and the vague and tumultuous past traversed the twilight which reigned in his brain. Again he beheld Mabeuf fall, he heard Gavroche singing amid the grape-shot, he felt beneath his lips the cold brow of Eponine; Enjolras, Courfeyrac, Jean Prouvaire, Combeferre, Bossuet, Grantaire, all his friends rose erect before him, then dispersed into thin air. Were all those dear, sorrowful, valiant, charming or tragic beings merely dreams? ”
