Read it through once

“Which makes his good manners the more valuable. The older a person grows, Harriet, the more important it is that their manners should not be bad; the more glaring and disgusting any loudness, or coarseness, or awkwardness becomes. What is passable in youth is detestable in later age. Mr. Martin is now awkward and abrupt; what will he be at Mr. Weston’s time of life?”