Question: a boy who won't stand up for himself becomes a man who can't stand up to anything. (p. 221)?
Answer: 2. “A boy who won't stand up for himself becomes a man who can't stand up to anything.” Baba says these words to Rahim Khan while he is talking about Amir at the end of Chapter 3, and the quotation reveals important traits in both Amir and Baba.