Self Supreme

Said Uddalaka to Shvetaketu:
"In the beginning was only Being,
One without a second.
Out of himself he brought forth the cosmos
And entered into everything in it.
There is nothing that does not come from him.
Of everything he is the inmost Self.
He is the truth; he is the Self supreme.
You are that, Shvetaketu; you are that."

-Chandogya Upanishad