आचारहीनं न पुनन्ति वेदाः यद्यप्यधीताः सह षडभिरंगै: – Even if one one has studied the Vedas along with its six Angas (parts – namely Shiksha, Vyakaranam, Chandas, Niruktam, Jyotisham, Kalpa), the Vedas do not purify or protect him if he has no Aachara.-Sri Mahasannidhanam