अनुद्वेगकरं वाक्यं सत्यं प्रियहितं च यत् । स्वाध्यायाभ्यसनं चैव वाङ्मयं तप उच्यते ॥ १७-१५॥ anudvegakaraṃ vākyaṃ satyaṃ priyahitaṃ ca yat svādhyāyābhyasanaṃ caiva vāṅmayaṃ tapa ucyate Speech which causes no excitement, and is truthful, pleasant and beneficial, and the practice of the study of the VEDAS, these constitute the austerity of speech. anudvegakaraṃ = not agitating; vākyaṃ = words; satyaṃ = truthful; priya = dear; hitaṃ = beneficial; ca = also; yat = which; svādhyāya = of Vedic study; abhyasanaṃ = practice; ca = also; eva = certainly; vāṅmayaṃ = of the voice; tapaḥ = austerity; ucyate = is said to be.;