The idea of an evolutionary cosmos came up in Greek antiquity. The cosmos was thought to be a unity which contains everything. The religious cosmogony was replaced by science, the gods by logical principles. The philosophy of physics dominated the world view during the 16th to the 19th century. In the 19th/20th century cosmology became more than mere physics. Critical philosophy mainly thought of models (Poincaré, Duhem). A further way was established by phenomenology (John Barrow) and a third by the romantic natural philosophy. Among these are mentioned the bestseller authors Stephan Hawking, Hubert Reeves and Alain Lacroix. According to the last one the following ideas are the most interesting: nature as a unity, a principle, the hierarchy of order, the metamorphosis and the dynamics of forms. Within this philosophy the cosmos becomes nature, esprit, conscience, intention and so on.