In the book "Eclipse" by Stephenie Meyer, the character reflects on their academic experience, noting that history was straightforward for them. However, they express uncertainty about their understanding of Calculus, implying that their comprehension of the subject may indicate a poor performance. This highlights a common sentiment among students, where difficulty in a subject can often lead to anxiety about their success.

The quote captures the feeling of confusion that can accompany challenging subjects like Calculus, contrasting with the easier historical topics. It suggests an internal struggle many students face when their efforts may not yield the confidence they expect, emphasizing the complexities of learning and self-doubt in academic settings.