The Beautiful and Damned by F. Scott Fitzgerald

"Always the most poignant moments were when some artificial barrier kept them apart: in the theatre their hands would steal together, join, give and return gentle pressures through the long dark; in crowded rooms they would form words with their lips for each other’s eyes — not knowing that they were but following in the footsteps of dusty generations but comprehending dimly that if truth is the end of life happiness is a mode of it, to be cherished in its brief and tremulous moment."