Telling lie is usually looked upon as an evil, because some people try to get benefit from dishonest means or try to conceal their faults. On the other hand, honesty is widely recognized as the best policy.
Parents always try to prove the benefits of being honest when you are a little child. A good story in this regard is .One day the child Washington chop down his father's favorite cherry tree; although knowing he would deserve to be punished, he told his father the truth. Unexpected, his farther apprised him rather than executing a punishment; moreover, he was encouraged to maintain the good manner all the time. As known to all, the honest boy eventually became one of the greatest presidents in American history.
However, telling lie, despite its negative effects, sometimes is essential in our daily life. First, the liar itself will benefit from the lie by escaping from the pressure of unnecessary embarrassment. On the other hand, the listener will feel more comfortable by reasonable excuses. For example, if a little girl's farther died in an accident, her mother would comfort her by saying" farther has gone to another beautiful land". In such cases, a lie with original goodwill is like a naught angel who might make the cruel nice. Furthermore, to some extent, the skills of telling lie can be regard as a capacity of creation and imagination.
Taking all those factors into consideration, we can definitely come to the conclusion that whether telling lie is harmful depends on its original intention and the ultimate result it will bring. If one is honest with oneself, one always learns from mistakes, can correct a concept or a hypothesis and work further, and reach the goal finally.