It reinforces the notion that we must not take part in injustice. Explanation: Paragraph 6 "supports the principle that we must not assist in injustice," according to the question. This aids in the development of the passage's main concepts. These are summarized on page 4 as follows: "Lincoln believed that we should stay away from evil" and "that we should do good." Paragraph 6 also supports this idea by stating that "it is more important to be good than to be rich." This shows that Lincoln believed that it was more important to do good than to have money. This agrees with the main concept on page 3 that Lincoln believed that "all men are created equal." Finally, paragraph 6 explains that one cannot benefit everyone equally because some people will always be richer than others. This illustrates that it is better to help only those who need it rather than everyone who asks for your help. This agrees with the main concept on page 2 that Lincoln believed that "one person can't save everyone who needs saving." Thus, paragraph 6 contributes to the development of ideas in the text by reinforcing these three main concepts: We should not participate in injustice, we should help those in need, and one person can't save everyone who needs saving.