This was a famous question and answer given by O 'Henry in his novel The Last Leaf. Draw a leaf for life: As long as you believe in it, there will always be a miracle. Although the hope is slim, it will last forever. This sentence expressed a profound thought that no matter how many difficulties and setbacks we encounter in life, as long as we have faith, hope will never disappear. The story was about a boy named Henry who was studying biology in a university. He was very fond of nature and had a strong interest in plants and animals. However, he encountered some difficulties in school and was unable to continue studying. In the end, he decided to give up biology to focus on his own interests and began writing. In the process of writing novels, he encountered many setbacks, but he never gave up. He always believed in his talent and dreams. In the end, his novel was a success and was hailed as a classic. This story tells us that no matter how many difficulties and setbacks we encounter, as long as we keep moving forward with faith, we will definitely be able to overcome the difficulties and realize our dreams.