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There is one friend in the life of each of us who seems not a separate person, however dear and beloved, but an expansion, an interpretation, of one's self, the very meaning of one's soul.

Edith Wharton (2013). “Delphi Complete Works of Edith Wharton (Illustrated)”, p.7592, Delphi Classics
There is one friend in the life of each of us who seems not a separate person, however dear and beloved, but an expansion, an interpretation, of one's self, the very meaning of one's soul.