When1: 1746
When2: 1754
Who: Étienne de Condillac [Condillac, Étienne de]
What: philosopher
Where: Paris, France
works\ Essay on the Origin of Human Knowledge [1746]; Treatise on Sensation [1754]
Detail: He lived 1715 to 1780 and was philosophe. He tried to make science of ideas {idéologie}.
Epistemology
All knowledge depends on senses {sensationalism, Condillac}. Data infer perceptions. For example, people do not see retinal images but external objects. All ideas are sense qualities or sense-quality transformations. Morals, abstraction, will, imagination, and judgment come from perceptions. Consciousness automatically senses sense-quality relations to themselves and self, because they are all in same consciousness. Knowledge is consciousness of idea relations. The chief relation is equality. Knowledge expresses unknown ideas in terms of known. Logic is general language grammar. Languages are how people analyze ideas and phenomena.
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Date Modified: 2022.0224