This paper analyzes the relationship between feminism and its various ideological cores. Three tendencies are discussed: acceptance of the ideological core, criticism and rejection of this core, and, more intricately, acceptance of one core and rejection of another. The emphasis is placed on Anglo-American second-wave liberal feminism, whose ideological nature is almost unanimously accepted, in all the meanings of the term - positive, negative, and neutral. The author adopts Christine di Stefano's idea, that a qualified use of the word "ideology" is preferable to the neglect (that nevertheless must accept the presence) of the term.