This radio series delves into the critical reflection of philosophy, particularly its capacity for critically analyzing its own activities and reflections. The first part explores the need to return to the foundations of thought, not as a denial of past achievements, but as an evaluation of the most suitable elements. The series further addresses the apparent contradiction between reason and experience, which is based on a misconception. The author argues that our perception and understanding are always contextual, requiring the active establishment of our own interpretive framework, using causality as an example. The third part focuses on reactivity and its fundamental problem of integration, illustrated by a gas explosion. The fourth and fifth parts then analyze the complexity of maintaining equilibrium states in living beings, the issue of norms, and social realities, where relationships between beings transcend the mere sum of their individual properties, creating complex entities like communities and civilizations.