There are many different types of sources we might draw from and explore:
Some sources may take an obviously subjective approach or display a degree of bias. Sometimes this is appropriate to express a point of view! Know that no information is truly objective - not even scholarly writing or the New York Times. This doesn't make it less valid or less credible but you need to learn to evaluate the author or creator's perspective read between the lines.
Scholarly sources aka academic scholarship tends to come from people (like your professors) and is written primarily for an academic community, or others in their field. We should examine scholarly sources with a degree of criticality- though we may not be experts on a topic enough to agree or disagree with certain claims- we can still choose whether or not to engage with the text in our own writing and arguments. This engagement is part of the scholarly conversation.
Activity: Look at each of these articles. Answer the following:
Group 1: The Four Raskolnikovs and the Confessional Dream
Group 2: Dostoevsky at 200: An Idea of Evil
Group 3: Sonya, Silent No More: A Response to the Woman Question in Dostoevsky's "Crime and Punishment"
Group 4: Dostoevsky Variations