Lately, with G-d's help, the Chabad community - especially Chabad women - have undertaken specific good matters of conduct and comportment, matters which until now - for whatever reasons - were not performed by all.
When something new comes to a place it is easy for it to be, G-d forbid, shattered. Thus, the merit is truly great of each and every one who does his or her share to strengthen these new positive manners of conduct.
On the other hand, it is easier to affect oneself - even if until now one did not appreciate the true importance of such behavior - by realizing that one's deportment is not a private matter, but has an effect, to a certain extent, on the whole community.
Therefore, without dwelling on the causes that up till now constrained certain positive conduct with regard to manner of dress and education of children among some of the households of the Chabad community, I want to once again draw your attention, that from now on all, without exception, are to unite with the women of the Chabad community who wear sheitlen (wigs), provide their children with a true Chassidic education, and conduct their homes in a true Chassidic manner with all its ramifications.
May G-d help you that you perceive the truth, that acting in this way is not so difficult, nor is it something about which you should be ashamed, Heaven forfend.
Be proud of your strength that you are not abashed that when you walk in the street your friends and acquaintances perceive that here walks a Jewish woman who adheres to the "Laws of Moshe and Yisroel" - so much so, that you do not desire to conceal it.
Be proud that your children know that they are different from all other Nations, that they have received the Torah, a "Torah of Life," and learn it as the singular foundation of their education.
Excerpt from Igros Kodesh, Vol. XVIII, pp. 6-7