"Love: A temporary insanity curable by marriage or by the removal of the patient from the influences under which he incurred the disorder. This disease, like caries and many other ailments, is prevalent only among civilized races living under artificial conditions; barbarous nations breathing pure air and eating simple food enjoy immunity from its ravages. It is sometimes fatal, but more frequently to the physician than to the patient".

"Today I begin to understand what love must be, if it exists. When we are parted, we each feel the lack of the other half of ourselves. We are incomplete like a book in two volumes of which the first has been lost. That is what I imagine love to be: incompleteness in absence."