Aupmanyav
Be your own guru
That Nasadiya Sukta talks of existence arising out of non-existence is well known. Here is another hymn which says the same:
"Brahmaṇah patiretā saṃ karmāra ivādhamat l devānāmpūrvye yuge asataḥ sadajāyata ll
Devānāṃ yuge prathame.asataḥ sadajāyata l tadāśhā anvajāyanta taduttānapadah pari ll
These Brahmaṇaspati produced with blast and smelting, like a Smith; existence, in an earlier age of Gods, from non-existence sprang.
Existence, in the earliest age of Gods, from non-existence sprang; thereafter were the regions born. This sprang from the Productive Power.
http://www.sacred-texts.com/hin/rigveda/rv10072.htm
"Brahmaṇah patiretā saṃ karmāra ivādhamat l devānāmpūrvye yuge asataḥ sadajāyata ll
Devānāṃ yuge prathame.asataḥ sadajāyata l tadāśhā anvajāyanta taduttānapadah pari ll
These Brahmaṇaspati produced with blast and smelting, like a Smith; existence, in an earlier age of Gods, from non-existence sprang.
Existence, in the earliest age of Gods, from non-existence sprang; thereafter were the regions born. This sprang from the Productive Power.
http://www.sacred-texts.com/hin/rigveda/rv10072.htm