Evidence

I think that evidence is very important, because with out evidence know one will believe you. Like in court if there is a case against you, but there is no evidence they will have to let you go, or they might not even have a case. It's hard to talk about something that not really if there is no info on the thing. So in a paper if you are talking about a president you have to explain why you liked him and why you didn't like him and show examples.