Lie

People lie all the time.
This is a world made of lies.
If someone says he has not lied, then it is a lie.
But there is no purpose for not lying (except for professional people). Lying is often to hide things that are not good for oneself, such as: children fail to take the exam or falsely report their scores; adults are afraid that bad things will spread to themselves Has a bad influence on the future...
We can't judge the right or wrong of every lie, and we can't eliminate the lie forever. A lie is always tied to the truth, just as despair and hope cannot be missing, no matter which one is missing, the remaining one will become meaningless.