Being and Nothingness was "a pretentious metaphysical thesis" and "principally an exercise in misusing the verb 'to be'." The philosopher William Barrett, writing in "Irrational Man" (1958), described "Being and Nothingness" as "a great, uneven, brilliant and verbose tome". He noted Sartre's debts to Heidegger, but nevertheless credited him with originality. He criticized Sartre for neglecting Heidegger's "notion of the truth of Being", his understanding of what it means for a subject or object to be. In his view, Sartre failed to "deal with the problem of truth in a radical and existential way", instead viewing truth in "the ordinary intellectualistic sense that
Thomas Brown (philosopher) Darwin's theory of transmutation. The philosopher published it in the form of a detailed study "Observations on the zoonomia of Erasmus Darwin" (1798), which was recognized as a mature work of criticism. There, Brown wrote: Noteworthy, Brown's criticism of the Darwinian thesis, like that of Rudolf Virchow, did not come from any religious feeling. Brown's philosophy occupies an intermediate place between the earlier Scottish school and the later associational psychology, to which he really belonged. Later criticism of Brown's philosophy lessened its popularity, a severe attack being made by Sir William Hamilton, 9th Baronet in his "Discussions" and "Lectures on