Isaac Schulz Visits the Spidey-Hole 2009
"And then see the difference between the right cheek and the left cheek. On the left there is darkness, a heaviness of the features, inner calm, and the most complete indifference of expression. On the right, on the contrary, the light of the eye and the orbit shines right across the whole cheek, and the features appear lengthened and their relief modified. What a marvelous transformation of facial expression! It is the awakening of the spirit."
The Mechanism of Human Facial Expression G.B. Duchenne de Boulogne (1806-1875)
Edited and Translated by R. Andrew Cuthbertson