If we assume one theme of the novel is the importance of scientific exploration, which of the following quotes supports this idea?
“It was impossible...to deny the existence of the traveler, and the reality of that voyage which I believed all along to have been a myth...”
“Forward-forward,” I cried in a burst of genuine and hearty enthusiasm”
“Let us return to our good friend, Hans,”
“While these reflections were passing through my mind...”