Describe how chapter 4 develops themes to produce a complex account.

Victor is becoming consumed by his scientific pursuits. Though Victor briefly worries about his father, who has been anxiously awaiting a letter from his son for over a year, he deludes himself into believing that the elder Frankenstein would understand and approve of his endeavors. In retrospect, he realizes that the pursuit of knowledge should be serene: when it is overly passionate, it takes on the character of an obsession. Simple pleasures are thereby destroyed; study itself becomes a thing "not befitting the human mind."