Which one of the following is not the whole truth according to the passage?

The passage explicitly states 'Although in a general way, the maxim necessity is the mother of invention is true, it is by no means the whole truth.' This directly indicates that this maxim is not the whole truth according to the passage. The author argues that man is more than just an inventor responding to needs—he has a spirit that urges him to reduce needs and be content, which is a fuller truth about human nature.