Similar quotesA man is never more truthful than when he acknowledges himself a liar.
Mark Twain 
When in doubt tell the truth.
Mark Twain 
I never give them [the public] hell. I just tell the truth, and they think it is hell.
Harry S. Truman 
Truth is more of a stranger than fiction.
Mark Twain 
... when you have eliminated the impossible, whatever remains, however improbable, must be the truth.
Sir Arthur Conan Doyle 