Erich Fromm
Author: Erich Fromm
Publisher: Continuum Impacts (2005)

For Spinoza, mental health is, in the last analysis, a manifestation of right living; mental illness, a symptom of the failure to live according to the requirements of human nature. \r\n \r\n>But if the greedy person thinks only of money and possessions, the ambitious one only of fame, one does not think of them as being insane, but only as annoying; generally one has contempt for them. But factually, greediness, ambition, and so forth are forms of insanity, although usually one does not think of them as 'illness' (Ethics, 4, prop. 44). \r\n \r\nIn this statement, so foreign to the thinking of our time, Spinoza considers passions that do not correspond to the needs of human nature as pathological; in fact, he goes so far as to call them a form of insanity.