Looking For Quotes About Morgoth

[Nikkolas]

A guy on another site said this:

This is on the same track as my line of thinking. If Morgoth made them, he could not give them life from Eru's Flame Imperishable because nobody else has access to it. The only other option would be to use his own Life Energy; in that sense, the orcs would not really be separate individuals, but extensions of Morgoth; essentially, Morgoth and the orcs (and trolls and dragons) would be one life-form with multiple bodies and minds, with all the others being subordinate to Morgoth's will and sense of morality.

And I'm sure he's right but I can't find the exact quote saying Morgoth let his power go into his minions. Does anyone have it?

I also feel like there's another quote that isn't in The Sil that talks about how shocked the victors were after the War of Wrath. They found Morgoth cowering in Angband and couldn't believe hoe diminished he was. If anyone could tell me where that quote is, I'd appreciate that too.