"I just thank my father and mother, my lucky stars, that I had the advantage of an education in the humanities"

This quote by David McCullough expresses his gratitude for the education he got from his parents and his good fortune. He is thankful for the chance to learn more about the humanities, which includes literature, viewpoint, and history. He recognizes the importance of having a well-rounded education and the effect it has actually had on his life. He acknowledges that his parents and his luck have actually allowed him to get knowledge and understanding of the world around him. He is appreciative for the benefit of having an education in the liberal arts, which has allowed him to gain insight into the human experience. He is grateful for the chance to find out and grow, and to be able to share his understanding with others.