NEMO

"Think of it. On the surface there is hunger and fear. Men still exercise unjust laws. They fight, tear one another to pieces. A mere few feet beneath the waves their reign ceases, their evil drowns. Here on the ocean floor is the only independence. Here I am free! Imagine what would happen if they controlled machines such as this submarine boat. Far better that they think there's a monster and hunt me with harpoons." Captain Nemo

This quote explains many things in a few words. Under water is a whole new world. A world where you can be whatever you want, and free to think of your own individual thoughts. On land, there will be always be top and bottom, people fighting, and other people suffering. It is a never ending cycle that will always be true on land. But Nemo wanted to be free from all of these things, so he lives in a separate world. He is free, as if one of us would be free if we move to the moon or somewhere where it is undisturbed from human kind.