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 and let him deceive me as much as he can, he will never bring it about that I am nothing, so long as I think that I am something. So, after considering everything very thoroughly, I must finally conclude that the proposition, "I am, I exist," is necessarily true whenever it is put forward by me or conceived in my mind. (AT VII 25; CSM II 16–17) There are three important notes to keep in mind here. First, he claims only the certainty of "his own" existence from the first-person point of view — he has not proved the existence