We all go a little mad sometimes.

Sometimes I feel sure he is as mad as a hatter and then, just as he is at his maddest, I find there is a method in his madness.

Those whom God wishes to destroy he drives mad.

We are all born mad. Some remain so.

That's the terrible part. I swear to God I'm a madman.

He is as mad as a March hare.

Let us speak of our madness. We are always being called mad. If we are mad — we and our brothers in America who are walking hand in hand with us in the vanguard of progress — at least we are mad in company with most of our great predecessors and all the most intelligent foreigners. Beethoven, Schumann, and Wagner, Shelley, Blake, Keats, Coleridge, Wordsworth were all mad in turn. We shall be proud to join them in the Asylum to which they are now consigned.

But his soul was mad. Being alone in the wilderness, it had looked within itself and, by heavens I tell you, it had gone mad.

He was going mad and knew it

He may be mad, but there's method in his madness. There nearly always is method in madness. It's what drives men mad, being methodical.

"We all go a little mad sometimes"
Norman Bates

A touch of madness is, I think, almost always necessary for constructing a destiny.

Heredity or environment? I wondered wryly. We were all of us, to some degree, mad after his fashion. To be honest, it had to be a form of madness, to have so much and to strive so bitterly for just a little more, for a bit of an edge over the others. He carried this tendency to its extreme, that is all. He was a caricature of this mania in all of us. In this sense, did it really matter which of us was the traitor?

It's an absurdity. An Alpha-decanted, Alpha-conditioned man would go mad if he had to do Epsilon Semi-moron work - go mad, or start smashing things up.