If we are going to reduce philosophy to “subjective opinions”, then human knowledge actually includes “subjective opinions”. Being able to form and communicate

If we are going to reduce philosophy to “subjective opinions”, then human knowledge actually includes “subjective opinions”. Being able to form and communicate clear, coherent, logical, consistent “subjective opinions” about the real world, including our internal states, is itself a form of knowledge. It is a skill that is arguably the root of civilization and absolutely the root of science.