Philosophical thinking is critical thinking about basic concepts and beliefs, such as thinking about what truth and lies are? What is justice? What is knowledge? What is the meaning of life? The subject, the field of philosophical thinking, is reflection on fundamental concepts, concepts that serve as the theoretical basis for this discipline, for example, the question of mathematical philosophy, how to determine the number? What is infinity? Is the question of religious philosophy a question of God? How do we know about the existence of God? The ways and tools of philosophical thinking are diverse. Doubt - I can't doubt what I think, criticism, when tracing history. In any case, philosophical thinking, as a rule, is mental, and philosophical proposals are not usually derived from induction, unlike science. Philosophical thinking, as a rule, should be logical, systematic, clear and able to answer important philosophical questions. Philosophical reflections on space We use philosophic