“One person can keep a secret, but not two.”
Source: Ready Player One
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Ernest Cline 28
writer 1972Related quotes

“Three may keep a secret, if two of them are dead.”
Source: Quoted by Gerald Gawalt in " In His Own Words: Library Exhibition Celebrates Tercentenary of Benjamin Franklin's Birth https://www.loc.gov/loc/lcib/0601/franklin.html"
“One of the best ways to keep a great secret is to shout it.”
Address to Polaroid employees at Symphony Hall in Boston, Massachusetts (5 February 1960), as quoted in Insisting on the Impossible : The Life of Edwin Land (1998) by Victor K. McElheny, p. 7
Land was not the first to make such observations; in One Man in His Time (1922), p. 162, Ellen Glasgow has a character state:
Half the time when he is telling the truth, it sounds like a joke, and that keeps people from believing him. He says the best way to keep a secret is to shout it from the housetops; and I've heard him say things straight out that sounded so far fetched nobody would think he was in earnest. I was the only person who knew that he was speaking the truth.

“How can we expect others to keep our secrets if we cannot keep them ourselves?”
Comment prétendons-nous qu'un autre puisse garder notre secret, si nous ne pouvons le garder nous-mêmes?
Maxim 64 of the Maximes supprimées.
Later Additions to the Maxims