Read this excerpt from Narrative of the Life of Frederick Douglass. I was probably between seven and eight years old when I left Colonel Lloyd's plantation. I left it with joy. I shall never forget the ecstasy with which I received the intelligence that my old master (Anthony) had determined to let me go to Baltimore, to live with Mr. Hugh Auld, brother to my old master's son-in-law, Captain Thomas Auld. I received this information about three days before my departure. They were three of the happiest days I ever enjoyed. I spent the most part of all these three days in the creek, washing off the plantation scurf, and preparing myself for my departure. Which detail from the passage is evidence that Douglass experiences optimism despite his circumstances?