
“There are four classes of Idols which beset men's minds.”
Aphorism 39
Novum Organum (1620), Book I
Context: There are four classes of Idols which beset men's minds. To these for distinction's sake I have assigned names — calling the first class, Idols of the Tribe; the second, Idols of the Cave; the third, Idols of the Market-Place; the fourth, Idols of the Theater.