...if in the heat of the dispute he insists and asks, 'Am I not the master of throwing myself out of the window?' I shall answer him, no; that whilst he preserves his reason there is no probability that the desire of proving his free agency, will become a motive sufficiently powerful to make him sacrifice his life to the attempt: if, notwithstanding this, to prove he is a free agent, he should actually precipitate himself from the window, it would not be a sufficient warranty to conclude he acted freely, but rather that it was the violence of his temperament which spurred him on to this folly. Madness is a state, that depends upon the heat of the blood, not upon the will. A fanatic or a hero, braves death as necessarily as a more phlegmatic man or a coward flies from it.
Paul Henri Thiry d'Holbach
determinism, free-will, madness, mental-illness