A primary source. For example, a journal entry, a newspaper article, but they must be written by someone who saw it with their own eyes, rather than a secondary.
In "1984" by George Orwell, during the discussion between Julia and Winston, we find out that the Party has control over society because they were able to keep people ignorant. Winston does not know what year it is, and the information changes so often that it is almost impossible to discover the truth. Also, Julia explains that the Party's puritanism allows the people to channel their anger and frustration towards anyone that opposes the Party.
It’s either you did good or she not letting you do it again
