The Giver by Lois Lowry, chapter 8: What were the 4 qualities that made Jonas the perfect candidate? Which ones would he acquire with training?
The first quality that makes Jonas the perfect candidate to be the Receiver of Memory is wisdom. Technically speaking, Jonas doesn't have this one . . . yet. It is the one that he can and will acquire with training.
The second quality that Jonas has is intelligence. Jonas has shown through his work at school that he is a top student.
The third quality is courage. This quality is similar to the wisdom quality. Jonas hasn't necessarily shown this quality a lot yet. But both the chief elder and the current Receiver "feel certain that you [Jonas] are brave."
The fourth quality is integrity. Jonas has shown himself to be a good rule follower. That doesn't mean Jonas is perfect, but Jonas has always been honest about his errors. He confesses them and accepts the consequences.
Technically, there is a 5th characteristic. That characteristic is "the capacity to see beyond." It's why Jonas can see things in color. The current receiver also already confirmed that Jonas has this quality.