What are the themes, purposes, messages of 'a journey to the centre of the earth'?
the purpose of this book is to teach us that we must be perseverent in all that we do, like the professor. though he meet with many difficulties in his journey, he refused to give up and return to the surface. so if we are perseverent in life, do not give up when we meet with obstacles, we can then succeed. that is also the message.
the theme is then "perseverence will lead to success"