José Ortega y Gasset decide and create a "project of life"—thus not be like those who live a conventional life of customs and given structures who prefer an unconcerned and imperturbable life because they are afraid of the duty of choosing a project. With a philosophical system that centered around life, Ortega y Gasset also stepped out of Descartes' "cogito ergo sum" and asserted "I live therefore I think". This stood at the root of his Kantian-inspired perspectivism, which he developed by adding a non-relativistic character in which absolute truth does exist and would be obtained by the sum of all perspectives of all
Cogito, ergo sum As a critic of Cartesian subjectivity, Heidegger sought to ground human subjectivity in death as that certainty which individualizes and authenticates our being. As he wrote in 1927: "This certainty, that "I myself am in that I will die," is the basic certainty of Dasein itself. It is a genuine statement of Dasein, while "cogito sum" is only the semblance of such a statement. If such pointed formulations mean anything at all, then the appropriate statement pertaining to Dasein in its being would have to be "sum moribundus" [I am in dying], "moribundus" not as someone gravely ill or wounded,