Both men use their past experiences to show readers that they persevered and became accomplished readers and writers.
Explanation:
From the first excerpt Thoughts and Sentiments, the author reveals his interest to write, read and learn and on perceiving his ability and interest his master sent him to a school to learn.
In the second excerpt, Letters of the Late Ignatius Sancho, An African, the author shares the happenings of his unlucky childhood and his fortunate latter part in which he have spent in the service of one of the best families in the kingdom.
Both the authors shows the readers their personal past experiences that they treasured in their heart.
