We celebrate this history, this heritage, as an immigrant nation. And we are strong enough to acknowledge, as painful as it may be, that we haven't always lived up to our own ideals. We haven't always lived up to these documents. [...] We succumbed to fear. We betrayed not only our fellow Americans, but our deepest values. We betrayed these documents. It's happened before. And the biggest irony of course was — is that those who betrayed these values were themselves the children of immigrants. How quickly we forget. One generation passes, two generation passes, and suddenly we don't remember where we came from. And we suggest that somehow there is us and there is them, not remembering we used to be them.

Naturalization Ceremony speech (December 2015)