Science is spoken of in two senses. Sometimes it refers to science stricto sensu, which is synonymous with knowledge in general, or with any structured body of knowledge that is deliberately acquired and historically controlled in its progress. But it also includes the critique of science in the first sense, as well as the development of a systematic understanding of the entire body of knowledge and of the subject of knowledge, the human being. While science in the first sense includes thought, which is provisional and therefore abstract and dogmatic, thought in the second sense claims to have transcended this provisional character, to have overcome its abstractness, and to be free from the dogmatic character of ordinary, particular knowledge.