" The best plan of all,” said I, “would certainly be to carry one’s house with one.”   “Oh you snail!” cried Banks.   “My friend,” replied I, “a snail who could leave his shell, and return to it at pleasure, would not be badly off. To travel in one’s own house, a rolling house, will probably be the climax of inventions in the matter of journeying!”   “Perhaps "

― Jules Verne , The End of Nana Sahib: The Steam House (Extraordinary Voyages, #20)