[The meaning behind some personalist bioethical principles]

The article focuses on the anthropological bases of the personalist bioethical principles of unitotality and solidarity. In the first sense person is an unity, not a external compound of body and soul. Following Zubiri her dynamic unity goes through diverse phases, according to whether the actionally, dispositional or in passivity active notes predominate. Personal temporality is studied as a progressive concentration of the person in herself starting from a given beginning. But if the person distends temporally, it is because she is not identical with herself, but she is constitutively open or in coexistence. What leads us to broach the suppositions of the seconde principle of solidarity, as a form of donation from her opened interiority.