I try to show in this brief note a simple case of the use of science with ideological, political or sectarian interests by those who, having prejudices, say they love and know it. \textit{That} case, is the case of Lukács in his work on the criticism of irrationalism that emerges in the 18th and 19th century, in which he shows a deep scientific ignorance as well as a persistent and unpleasant defense of the ideology that he professes. If, someone, while affirming that science is valid knowledge using it in his speech, and his doctrine, advocates its use or considers science itself, burning the ship of demarcation, if, he maintains the recognized scientific methodology apart from his dogmas and arguments for being contrary to his creed and simultaneously \textit{ignoramus et ignorabimus} the essential of contemporary scientific knowledge, then, the result of his convictions and litanies, with the emphasis or insistence that others allow him, contributes absolutely nothing to the science and confuses the clueless.