The reasons we lie.

We lie to please others.
We lie to make things fine.
We lie to avoid tension of conflicts.
We lie to reduce interaction.
We lie to save face.
We lie to gain power.
We lie to reduce or expand relationships.
We lie to guide social interaction.
We lie to harm others.
We lie to to benefit self.
We lie to appear strong.
We lie to avoid the hurtful truth.
We lie to maintain a sense of privacy.

I think I'm guilty for most, if not, all of the above reasons.