In distinction both from Camus's feeling that "Nausea" is an uneasy marriage of novel and philosophy and also from Mattey's belief that it is a philosophy text, the philosopher William Barrett, in his book "Irrational Man", expresses an opposite judgment. He writes that "Nausea" "may well be Sartre's best book for the very reason that in it the intellectual and the creative artist come closest to being conjoined." Barrett says that, in other literary works and in his literary criticism, Sartre feels the pull of ideas too strongly to respond to poetry, "which is precisely that form of human expression in which the poet—and the reader who would enter the poet's world—must let Being be, to use Heidegger's phrase, and not attempt to coerce it by the will to action or the will to intellectualization."