Until after the final redeemer arrives, there is no person on earth without some fault. Where this person fails on one count, another fails elsewhere.

We don’t appreciate someone else prying into our faults and underlining each one with a red pencil. So we know it is not right to do the same with another.

This is the way all people should relate to one another. But especially when it comes to your spouse and the members of your own family.

Igrot Kodesh, vol. 5, p. 61.