Sauron Diminished?

[Boromir88]

I believe this is the quote narfforc is talking about...

But to achieve this he had been obliged to let a great part of his own inherent power pass into the One Ring. While he wore it, his power on earth was actually enhanced. But even if he did not wear it, that power existed and was in "rapport" with himself: he was not "diminished."