Answer:
This quote connects to the main idea of the section because it states that all work will be rewarded and that people will achieve their goal, because it promotes good.
Explanation:
The quote shown in the question above reinforces the idea that people's struggle and effort had a good, progressive motive and that stimulated growth and social well-being. In addition, the author reinforces that even if people have been prevented from reaching their goals and have suffered to keep trying, they will be rewarded, because good always triumphs and it is not possible to prevent the power of good and the power of progress forever.
