"Yes, you may occasionally hear stories from that neck of the woods that conjure up images of unscrupulous Jews taking advantage of the less fortunate, but Ad K'dei Kach?" (source).

"The way I was taught tanya there are no simanim to differentiate between a tzadik and a beinoni, ad k'dei kach that a tzaddik does not neccesarily know that he is a tzadik." (source)