Before revision: In a blog-post on "Naive realism and color realism", Hilary Putnam sums up with the following words: "Being an apple is not a natural kind in physics, but it is in biology, recall.
After revision: In a blog post on "Naive realism and color realism", Hilary Putnam sums up with the following words: "Being an apple is not a natural kind in physics, but it is in biology, recall.