Sanskrit to English:
गाथानां प्रायः मुख्यतमे श्लोके, अध्याये ४५ श्लोके च ८ तमे प्रवादी ज़रतुष्ट्रः अन्ते सर्वशक्तं देवं स्वतः अन्तरे पश्यति, तदनुसृत्य सच्चिन्तनं, सद्वाक्यं, सत्कर्म इतीदं साधुत्रितयं सर्वैः मानवैः अनुसरणार्थम् सत्यस्य मार्गत्वेन उपदिदेश।
In perhaps the most important verse in the Gathas, Chapter 45, Verse 8, Prophet Zarathustra finally gets to perceive Almighty God himself with his mind's eye, pursuant to which the Holy Trinity of good thoughts, good words, and good deeds is laid down as the path of truth which mankind is to follow.