Bhagwad Gita
Chapter 10, Verse 32
सर्गाणामादिरन्तश्च मध्यं चैवाहमर्जुन।
अध्यात्मविद्या विद्यानां वादः प्रवदतामहम्।।10.32।।
Of all creations I am the beginning and the end and also the middle, O Arjuna. Of all sciences I am the spiritual science of the Self, and among logicians I am the conclusive truth.