I am as stumped as you. Is he talking about her concession speech? Admittedly . . . way too depressed to listen to it but did read it later and it is remarkably non-ideological and somewhat non-partisan too. 

I honestly wonder if it's this:

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And to all the women, and especially the young women, who put their faith in this campaign and in me: I want you to know that nothing has made me prouder than to be your champion.

Now, I know we have still not shattered that highest and hardest glass ceiling, but someday someone will — and hopefully sooner than we might think right now. [Cheers and applause]

And to all of the little girls who are watching this, never doubt that you are valuable and powerful and deserving of every chance and opportunity in the world to pursue and achieve your own dreams. 

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After all, we're not supposed to be telling little girls this sort of stuff.