Answer:
Paragraph 4 shows how Winston Churchill motivates the people to become united and always ready when war happens. This also shows that winning in a war is for a greater cause and that is, for the good of all people. Good conditions follow and attaining them happens slowly or after many years. He emphasized that people need to have the patience in order to triumph.
Explanation:
Winston Churchill is a British politician who became United Kingdom's Prime Minister. He gave the speech "Never Give In" in 1941 when he visited Harrow. Upon his visit, he came to notice a new verse that was added to the traditional song.
I believe the fourth paragraph you are referring to starts with this: "But we must learn to be equally good at..."