primary and secondary qualities

Primary qualities are properties that exist independently of our perception, such as shape, size, motion, and number—they are inherent features of objects. Secondary qualities, on the other hand, depend on our senses and perception, including attributes like color, taste, smell, and sound; they arise from the interaction of primary qualities with our sensory experiences. Essentially, primary qualities are objective features of the physical world, while secondary qualities are subjective experiences shaped by our senses and interpretation.