No insult should be offered to the father, the mother, and the preceptor. No act of theirs should be censured. The good and the great Rishis are pleased with him who treats his preceptors reverentially.
न तेऽवमानमर्हन्ति न तेषां दूषयेत् कृतम्। गुरूणामेव सत्कारं विदुर्देवा महर्षिभिः॥