4. "On Major Depression, quoted by the great William Styron of Sophie's Choice & Darkness Visible: From Darkness Visible, William Styron "It is a positive and active anguish, a sort of psychical neuralgia, wholly unknown to normal life."
- Quote by William Styron
5. "we are always personally under an agitating pressure and cloud of anxiety. And Olmsted himself had grown increasingly susceptible to illness. He was sixty-eight years old and partly lame from a decades-old carriage accident that had left one leg an inch shorter than the other. He was prone to lengthy bouts of depression. His teeth hurt. He had chronic insomnia and facial neuralgia. A mysterious roaring in his ears at times made it difficult for him to attend to conversation. He was still full of creative steam, still constantly on the move, but overnight train journeys invariably laid him low. Even in his own bed his nights often became sleepless horrors laced with toothache."
- Erik Larson, The Devil in the White City: Murder
6. "One can distinguish several types of inspiration, which intergrade, as all things do in this fluid and interesting world of ours, while yielding gracefully to a semblance of classification. A prefatory glow, not unlike some benign variety of the aura before an epileptic attack, is something the artist learns to perceive very early in life. This feeling of tickly well-being branches through him like the red and the blue in the picture of a skinned man under Circulation. As it spreads, it banishes all awareness of physical discomfort — youth’s toothache as well as the neuralgia of old age. The beauty of it is that, while completely intelligible (as if it were connected with a known gland or led to an expected climax), it has neither source nor object. It expands, glows, and subsides without revealing its secret. In the meantime, however, a window has opened, an auroral wind has blown, every exposed nerve has tingled. Presently all dissolves: the familiar worries are back and the eyebrow"
- Quote by Vladimir Nabokov