From the Diary of Anne Frank — English (Language & Literature) STD 10 — Question

Anne doesn't seem to have much faith in the people around her. She was living in a hiding and couldn't trust people so easily. Moreover, people do react. Sometimes people react rather in negative, unpleasant, vulgar and violent manners. Paper is an impersonal and non-reactive object. Whatever you write on it, it receives it without giving any such reactions.