It seems at first sampling to be a dreary desert of logic-chopping
and technical terminology, a lifeless procession of definitions,
divisions, subdivisions, distinctions, classifications, and
subtleties. Ockham knew all about "semantics"; he deplored the
inaccuracy of the terms used in philosophy, and spent half his time
trying to make them more precise. He resented the Gothic edifice of
abstractions- one mounted upon the other like arches in superimposed
tiers- that medieval thought had raised. We cannot find in his
extant works precisely the famous formula that tradition called
"Ockham's razor": entia non sunt multiplicanda praeter necessitatem -
entities are not to be multiplied beyond need. But he expressed the
principle in other terms again and again: pluralitas non est
ponenda sine necessitate - a plurality (of entities or causes or
factors) is not to be posited (or assumed) without
necessity; `061254 and frustra fit per plura quod potest fieri per
pauciora - it is vain to seek to accomplish or explain by assuming
several entities or causes what can be explained by fewer. `061255 The
principle was not new; Aquinas had accepted it, Scotus had used
it. `061256 But in Ockham's hands it became a deadly weapon, cutting
away a hundred occult fancies and grandiose abstractions.
Applying the principle to epistemology, Ockham judged it needless to
assume, as the source and material of knowledge, anything more than
sensations. From these arise memory (sensation revived), perception
(sensation interpreted through memory), imagination (memories
combined), anticipation (memory projected), thought (memories
compared), and experience (memories interpreted through thought).
"Nothing can be an object of the interior sense" (thought) "without
having been an object of the exterior sense" (sensation); `061257 here
is Locke's empiricism 300 years before Locke. All that we ever
perceive outside ourselves is individual entities- specific persons,
places, things, actions, shapes, colors, tastes, odors, pressures,
temperatures, sounds; and the words by which we denote these are
"words of first intention" or primary intent, directly referring to
what we interpret as external realities. By noting and abstracting the
common features of similar entities so perceived, we may arrive at
general or abstract ideas- man, virtue, height, sweetness, heat,
music, eloquence; and the words by which we denote such abstractions