There are two kinds of lies, one is malicious and deceptive, by deceiving others to get some kind of interest; the other is good, although it is also deceptive, But it will not let the deceived suffered losses, on the contrary will make it get something, may be material, may be spiritual. Benevolent lies, like blooming flowers, bloom in every corner of life. It also had left the marks in the history. In Three Kingdoms period, Cao Cao troops set off. Unexpectedly, it was hot weather, which made the soldiers all dry mouth and low morale. In order to boost their morale, Cao Cao sprinkled a lie: "in front there is a piece of Merlin, to accelerate forward!" It happened to be plum harvest season. Listening the words, the soldiers boosted the morale greatly and finally went out of the woods. In turn, if Cao Cao didn’t make the benevolent lies, what would happen to the soldiers? Maybe the soldiers would escape, heat to death, or thirst to death ... ... the consequences would be unt
