摘要： 1. intersubjectivity: common truth, common world view2. philosophical skepticism (the big doubt): 不相信任何从前的东西，尽量的从头开始研究，来建立更加稳定安全的知识3. empiricism：All knowlege based on sensory experience or observations (Alternatively, 尽量少的推理)4. episteme (认识论)：the knowledges of facts, such as physicst. One type of kn 阅读全文