Righteousness, truth, asceticism, selfcontrol, contentment, modesty, patience, unselfishness, gifts, acquaintance with the holy books, wisdom, forgiveness, are the twelve great vows of a Brahmanas.
धर्मश्च सत्यं च तपो दमश्च अमात्सर्यं ह्रीस्तितिक्षाऽनसूया। दानं श्रुतं चैव धृतिः क्षमा च महाव्रता द्वादश ब्राह्मणस्य॥