"he smiled understandingly -- much more than understandingly. it was one of those rare smiles with a quality of eternal reassurance in it, that you may come across four or five times in life."
this is a passage from

The Great Gatsby.

Explanation:

The given excerpt is taken from the novel "The Great Gatsby" written by F. Scott Fitzgerald.

The quote appears in Chapter 3 of the novel when Nick closely observes Gatsby for the first time. This quote is also the first impression of Gatsby to Nick. The smile of Gatsby in the novel plays a significant role in the novel. This quote displays the character and personality of Gatsby as Nick displays him as a kind person. This kindness of Gatsby is a rare quality found in a rich man.

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