It is pointed out in the passage that Edith Wharton's main interest in her novels .

Edith Wharton is, perhaps the greatest woman
novelist that America has yet produced. Her novels
are skillfully co instructed, and her style is smooth and
elegant. Her richest gifts, however, are the result of
her fearless search for truth in human relationships.
She is largely interested in the emotions we all
experience. Her novels record timeless truths; and it is
this fact above all that continues to make them
meaningful and important.