“In the weeks and months following the 9/11 attacks, I was proud to lead an amazing, resilient, united people. When it comes to the unity of America, those days seem distant from our own. A malign force seems at work in our common life that turns every disagreement into an argument, and every argument into a clash of cultures. So much of our politics has become a naked appeal to anger, fear, and resentment. That leaves us worried about our nation and our future together.

I come without explanations or solutions. I can only tell you what I have seen.

On America's day of trial and grief, I saw millions of people instinctively grab for a neighbor's hand and rally to the cause of one another. That is the America I know.

At a time when religious bigotry might have flowed freely, I saw Americans reject prejudice and embrace people of Muslim faith. That is the nation I know.

At a time when nativism could have stirred hatred and violence against people perceived as outsiders, I saw Americans reaffirm their welcome to immigrants and refugees. That is the nation I know.

At a time when some viewed the rising generation as individualistic and decadent, I saw young people embrace an ethic of service and rise to selfless action. That is the nation I know.

This is not mere nostalgia; it is the truest version of ourselves. It is what we have been -- and what we can be again.”