"ONE half of the world believes the other half to be mad; and who shall decide which moiety is right, the reputed lunatics or the supposed sane, since neither party can be unprejudiced in the matter? At present the minority believe that it is a mere matter of numbers, and that if intellect carried the day, and right were not overborne by might, the position of parties would be exactly reversed. The dilemma forced itself strongly on my consciousness for a solution when I attended the annual ball at Hanwell Lunatic Asylum. The prevailing opinion inside the walls was that the majority of madmen lay outside, and that the most hopelessly insane people in all the world were the officers immediately concerned in the management of the establishment itself."
Mystic London, by Charles Maurice Davies, 1875 - Chapter V - A Lunatic Ball