`Abdu'l-Bahá replied:
This, too, has two aspects. There are certain evils whose consequences affect the doer only and do not extend to others. Of course, with discretion and tact, we must try to warn and educate wrongdoers. They are sick; we must bring healing to them. But there are actions which are injurious to others. Association with persons who commit such deeds leads to a deterioration of morals and therefore to mingle with them is not advisable, except for persons of perfect integrity, who can also impart education. They should be exhorted to exert themselves to modify their morals and refine their behavior. The public should be protected from such harmful conduct by the institutions which administer justice. Thus, in the Tablets of the Blessed Beauty, although He commends association with people of all religions and races, He also forbids fellowship with the wicked, admonishing us to shun the people of negation and denial. (Words of ‘Abdu’l-Baha, Mahmud’s Diary, p. 74)