Complex sentence: Furtmüller wrote that Freud ignored critics and misused the work of Charles Darwin, arguing that while Freud showed wit and astuteness, Freud was also guilty of "the free play of fantasy".
Split into simpler sentences: Furtmüller wrote that Freud ignored critics and misused the work of Charles Darwin. In Furtmüller's view, while Freud showed wit and astuteness, he was also guilty of "the free play of fantasy".