Every great classic in literature is a manual on how to deal with madness.
There is no great genius without a mixture of madness.
I became insane, with long intervals of horrible sanity.
The greatest minds are capable of the greatest vices as well as the greatest virtues.
Sometimes it's only madness that makes us what we are.
In madness, I thought I was the most important person in the world.
Madness is a place. You go there, and you never come back.
The lunatic, the lover, and the poet, are of imagination all compact.
When you're mad, you don't know what you're doing. When you're crazy, you don't care.
The distance between insanity and genius is measured only by success.
Insanity is doing the same thing, over and over again, but expecting different results.
In individuals, insanity is rare; but in groups, parties, nations, and epochs, it is the rule.
Madness is like a deep well, feeding on itself endlessly.
Madness is like gravity. All it takes is a little push.
What is madness but nobility of soul at odds with circumstance?
When the gods wish to punish us, they answer our prayers.
The only difference between me and a madman is that I'm not mad.
I can calculate the motion of heavenly bodies, but not the madness of people.
Madness is never that far away. It's as close as saying yes to desire, and then watching the walls dissolve.