As for the ministers of the Sultan, Baháʼu'lláh criticizes them for actions which he claims are power-hungry. As for the clergy of Constantinople he denounces them for not investigating Baháʼu'lláh's message, and criticizes them as worshippers of "names" and lovers of leadership; he states that they are spiritually dead. To the philosophers of the world, Baháʼu'lláh sends a warning to them not to become proud of their knowledge, and he states that the essence of wisdom and knowledge is the recognition of the Manifestation of God and his teachings.