The liberty of communication cannot be mine until it has lost all its value!
– Jane Austen
Pride and Prejudice, Chapter 40. Elizabeth’s mind in in tumult, because she knows of Charles Bingley’s affection for her sister Jane through a letter from Darcy. But she feels that she cannot give false hope to Jane and tell us until there is "perfect understanding between the parties," and then it would be better coming from Bingley himself.