<blockquote>प्रमाणप्रमेयसंशयप्रयोजनदृष्टान्तसिद्धान्तावयवतर्कनिर्णयवादजल्पवितण्डाहेत्वाभासच्छलजातिनिग्रहस्थानानाम्तत्त्वज्ञानात्निःश्रेयसाधिगमः ।।१।। {पदार्थोद्देशसूत्रम्} (Nyaya. Sutr. 1.1.1)<ref name=":4">Nyaya Sutras ([https://sa.wikisource.org/wiki/%E0%A4%A8%E0%A5%8D%E0%A4%AF%E0%A4%BE%E0%A4%AF%E0%A4%B8%E0%A5%82%E0%A4%A4%E0%A5%8D%E0%A4%B0%E0%A4%BE%E0%A4%A3%E0%A4%BF/%E0%A4%85%E0%A4%A7%E0%A5%8D%E0%A4%AF%E0%A4%BE%E0%A4%AF%E0%A4%83_%E0%A5%A7/%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%A5%E0%A4%AE%E0%A4%AD%E0%A4%BE%E0%A4%97%E0%A4%83 Adhyaya 1 Ahnika 1])</ref></blockquote>Vastyayana Bhashya (Vats. Bhas. Nyay. Sutr. 1.1.1) (Page 14 of Reference <ref name=":5">Pt. Gangadhara Sastri Tailanga. (1896) The Nyayasutras with Vatsayana's Bhashya and Extracts from the Nyayavarttika and the Tatparyatika. ([https://archive.org/details/NyayaBhashyam-GangadharaTailanga/page/n48 Page 48 of PDF]) Benares : E. J. Lazarus & Co</ref>)
English Translation of Sutra and Bhasya (Page 20 of Reference <ref name=":6">Mm. Ganganatha Jha. (1939) Gautama's Nyayasutras With Vatsyayana Bhashya. Poona : Oriental Book Agency. ([https://archive.org/details/GautamasNyayasutras/page/n20 Page no 20])</ref>)