Francis Bacon on bullshit beliefs

Francis Bacon (1561-1626), in his Novum Organum (1620), classifies the sources of false beliefs (i.e. bullshit beliefs) into four categories or idols:
idols of the tribe (idola tribus),
idols of the cave (idola specus),
idols of the market (idola fori), and
idols of the theater (idola theatri).

See also:

and

C. D. Broad, The Philosophy of Francis Bacon, 1926.