- Risky: "Other people can let us down, insult or humiliate us, leading us to feel diminished and in danger."
- Helpful: "Yet we need other people to tell us when we have got our guesses right, and, when we get things wrong, to help us make more accurate assessments."
These two contrasting examples are marked as a key idea by telling us how bad and good friendship can be, and they have both advantages and disadvatages.
Since the goal is to inform the reader, the author uses factual evidence, subheadings, and diagrams to enlighten or educate the reader about the topic they are writing about. This helps the reader understand the topic and creates space for them to create their opinion about the topic.
