"I had learned what wealth was, and a great deal about production and exchange for myself in the early history of South Australia - of the value of machinery, of roads and bridges, and of ports for transport and export"

In this quote, Catherine Helen Spence reflects on her experiences in South Australia and how they have formed her understanding of wealth and production. She mentions that she has discovered the value of machinery, roadways, bridges, and ports in assisting in trade and export. This suggests that she has actually gained knowledge about the financial aspects that add to a prosperous society. By mentioning her individual involvement in the early history of South Australia, Spence highlights the practical nature of her knowing and how it has offered her a much deeper understanding of the value of these aspects in promoting economic growth. Overall, the quote showcases Spence's competence in economics and her appreciation for the role of facilities in driving wealth and advancement.