Tatiyaadhammasutta
“Adhammo ca, bhikkhave, veditabbo dhammo ca; anattho ca veditabbo attho ca. Adhammañca viditvā dhammañca, anatthañca viditvā atthañca yathā dhammo yathā attho tathā paṭipajjitabbaṁ.
Bad Principles (3rd)
“Mendicants, you should know bad principles and good principles. And you should know bad results and good results. Knowing these things, your practice should follow the good principles with good results.