If your friends lying to you. How would you feel? If it were me,I would feel terrible because I trusted my friend to everyone. So when they lied to me. It's destroy my trust for them.
Lying is what destroys trust and feelings. Lying is something that can create cracks in mind because if you lied to him, begin be happy. When he know truth,he will feel bad more than he know at first.
If you always lie, people will not trust you, you will never have true friends, and head, there is no trust in you to do the job. Therefore, the lie is what will make you successful in life does not exist at all.