How Did Dostoevsky Attack Against Scientific Rationalism

In Section 7, Dostoevsky expands his attack against scientific rationalism, utilitarianism, specifically starting from against their assumptions of humans' acting solely for their profits. Historically speaking, according to what Richard Pevear stated in the book's Foreword, Dostoevsky feared the "Giftlessness" embodied by Nikolai Chernyshevsky back to the nineteenth century. As one of the beliefs rooted in "Giftlessness", Chernyshevsky considers that men are basically good and always search after their enlightened self-interest. He thinks that men will arrive incontrovertible truth through science and rationalism.
In this section, Dostoevsky spins a web of “Proof by contradictions” to confront scientific rationalism and utilitarian beliefs.