Answer:
The author includes the sentence "my thoughts at this period centered in the determination that we should make and save enough of money to produce $300 a year $25 monthly which I figured was the sum required to keep us without being dependent upon others" to emphasize his motivation and financial goals at that time. It shows that he was determined to become financially independent and not rely on others for support. It also highlights the importance of financial stability and how it played a significant role in his life.
Step-by-step explanation: