the book "questões filosóficas" has reached its third volume, which for us is a great satisfaction in face of the expansion and improvement of Philosophical thinking. However, it is necessary to continuously seek knowledge, deciding to be clear about the facts and to build a reflective posture before the proposed themes.Defining Philosophy will always be a challenge, for it will never allow itself a ready and finished concept, but will always seek the accuracy and clarity of the facts in the process of thinking and acting of the human being.