Context: In this lesson the author explains the meaning of civilization through a dialogue between himself and a little girl Lucy.
Explanation : In these lines the author reminds Lucy that machines, cars, etc. are not beautiful but they are connected with being civilized. Lucy agrees and says that they all are the inventions. Inventions are done by civilized people. James Watt watched the kettle boiling and invented steam engine. Newton watched the apple dropping and invented laws of gravitation. So, such inventions are the result of civilization.
