Concept
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Primary and secondary qualities
Concept · 1 reading
Locke distinguishes qualities whose ideas resemble features of bodies from powers to produce sensations. Changing appearances raise questions that this distinction alone does not settle.
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Guided course · Module 9 · Lesson 50
Ideas, experience and a material world
Locke traces ideas to experience and distinguishes primary from secondary qualities; Berkeley challenges the material substance supposed to bear them. What does experience warrant about the objects we encounter?