Thesis white lies : 

I. courtesy  calls for lie

a. not every truth is mine to tell.

1. not every person has the right to know the truth.

II. Honor roll

b. no every way of the communication honors the truth.

2. Sometimes the manner of which something is said subvert reality

3. Some motives for telling the truth are simply too destructive to deserve the respectability of being clothed in the truth

Conclusion: courtesy calls for creative stretching of truth