The problem with mad people is not that they are mad, but that they are suffering from a particular brand of madness that the majority are not.

- Merlyn Gabriel Miller, Sex, Death, Drugs & Madness

Madness breeds madness.

- Dan Brown, Inferno

Everyone says she’s mad.’‘How do they know?’ I asked.‘Because she’s different from other people, I suppose.’‘Is that being mad?’‘No. Not really, I suppose madness is not seeing things as others see them.

- Ruskin Bond, The Best of Ruskin Bond

Mad people are very emotionally orientated! They have complex feelings, they’re easily upset, but are also easy to please! Most mad people have lonely lives, as nobody understands them. So they become “Lost Souls.” They dream a lot. Go within their minds to search - some will turn strange, become dangerous. So a madman is created! His world becomes a mission.

- Stephen Richards, Insanity: My Mad Life

There is a madness that is joy, and there is a madness that is just madness.

- Marty Rubin

Men are so inevitably mad that not to be mad would be to give a mad twist to madness.

- Blaise Pascal, Human Happiness

There was a madness in my story, but it was a madness I understood.

- Stephen King, Bag of Bones

The marvellous logic of the mad which seems to mock that of the logicians because it resembles it so exactly, or rather because it is exactly the same, and because at the secret heart of madness, at the core of so many errors, so many absurdities, so many words and gestures without consequence, we discover, finally, the hidden perfection of a language.

- Michel Foucault, Madness and Civilization: A History of Insanity in the Age of Reason

Some are born mad, some achieve madness, and some have madness thrust upon 'em.

- Emilie Autumn, The Asylum for Wayward Victorian Girls

When you are mad, mad like this, you don't know it. Reality is what you see. When what you see shifts, departing from anyone else's reality, it's still reality to you.

- Marya Hornbacher, Madness: A Bipolar Life