Agatha Christie quote about secret from Secret Adversary - Never tell all you know—not even to the person you know best.
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“ Never tell all you know—not even to the person you know best. ”
 Agatha Christie, Secret Adversary (1922). copy citation

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Author Agatha Christie
Source Secret Adversary
Topic secret openness distrust
Date 1922
Language English
Reference
Note
Weblink http://www.gutenberg.org/files/1155/1155-h/1155-h.htm

Context

“One sometimes manages to put in some work as well.»
Something in his tone made Tuppence glance up sharply. He shook his head with a smile.
«No, I shan't say any more. Great mistake to say too much. Remember that. Never tell all you know—not even to the person you know best. Understand? Good-bye.»
He strode away. Tuppence stared after him. She was beginning to understand Sir James's methods. Once before he had thrown her a hint in the same careless fashion. Was this a hint?” source

Meaning and analysis

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