In "Rappaccini's Daughter" by Nathaniel Hawthorne, how does the narrator's point of view reveal Giovanni's struggle with the advancements of science?

(Unfortunately, we are only able to answer one question per posting. Other questions
must be submitted separately.)

In terms of the narrator's point of view, we
learn several things throughout the story regarding his feelings about the experiments and the
scientific advancement they represent. Some are inferred in his observations, while others he
confronts openly.

When the narrator's colleague, Baglioni, discusses
Rappaccini's brilliance with his lack of concern for human life, warning the narrator against
Rappaccini, the narrator is not put off. When he gets a sense of evil eminating from the garden,
the narrator overlooks the feeling. Even when the narrator sees two creatures diethe lizard and
the insecthe does not embrace these observations...