" Who has not observed this fact with women, or even with men, endowed with a remarkable intelligence, but afflicted by nervousness? When they are happy, at peace, content with their surroundings, they cause us to admire their precious gifts; it is literally the truth that speaks through their mouths. A migraine, some small puncturing of their amour-propre is enough to change everything. The luminous intelligence, abrupt, convulsive, shrunken, now reflects only a self that is irritated, suspicious, coquettish, doing all it can to be unattractive. "

― Marcel Proust , Sodom and Gomorrah