== Not a paradox == 

  "Every man is a liar!" is similar to the "I always lie" statement they can't be true but they can be false, like in the statement "I don't always lie" could be true since in lying that he always lies it would not contradict the statement therefore the non-negative, (doesn't contain the "don't") true statement would be written as "I sometimes lie" the statement "Every man is a liar" must be false since it can't be true but wouldn't contradict itself it was false so the non-negative, true statement would be "At least the speaker (but not every man) is a liar "