Search for source of quote: "Always tell the truth..."

[Cohen, Gerald Leonard]

    Would anyone (Fred?) know the origin of the following quote: "Always tell the truth. You will confound your enemies and conceal your true intentions."

     I came across it years ago and since then have thought the attribution was to Disraeli. But now, with Google and YBQ available, I don't find it among Disraeli's quotes and thus far at least haven't been able to locate it on Google. I suspect I'm overlooking something obvious though.

    Any help would be much appreciated.

Gerald Cohen

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