Madness is to think of too many things in succession too fast, or of one thing too exclusively.
—Voltaire
To be sane in a world of madman is in itself madness.
—Jean-Jacques Rousseau
There is no genius without a touch of madness.
—Seneca
No great mind has ever existed without a touch of madness.
—Aristotle
I can calculate the motion of heavenly bodies, but not the madness of people.
—Isaac Newton
Men are so necessarily mad, that not to be mad would amount to another form of madness.
—Blaise Pascal
Though this be madness, yet there is method in’t.
—William Shakespeare
Scarcely have any *wise* men been brought to destruction, but it hath evidently been through their own *folly*; neither hath the wisest counsel of most been one jot better than madness.
—John Owen