© 2019. We propose a vitalist reading of Michel Foucault's work going beyond the mainstream interpretation that divides his proposals into three dimensions: knowledge, power and subjectivation. We will start our interpretation with her last text: "Life: Experience and Science". This text contains three important elements. First, it offers a deep reflection about the meaning of 'life' in the work of one of Foucault's Masters, Georges Canguilhem. Second, it pays tribute to the value of his work in the transformation of philosophy. Finally, it offers reinterpretation of Foucault's own work. We will sustain that the last lesson of Foucault is to propose vitalism as the key way of thinking for a future philosophy. To put this forward, we should first direct our attention to the work of Canguilhem, and then we will explain how the dynamics of knowledge, power and subjectification can be read from a vitalist approach.