We must never forget that there was nothing inevitable about our victory in that terrible war.

WHITEHOUSE: President Obama Addresses the British Parliament

We must never forget that the things we've struggled for and fought for live in the hearts of people everywhere.

CNN: Transcript: Obama's State of the Union speech

We are the oldest constitutional democracy in the world but we must never forget in the context of human history just how quickly we have come to where we are today.

CNN: Transcript: Clinton speaks at Memorial Day Event

Undeniably, as a species we are extremely adaptable, but we must never forget that the Oracle of Delphi called Socrates the wisest of all men: He was the wisest of all men because he realized he was stupid.

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Because we must never forget.

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And as a Nation, we reaffirm a most sacred obligation: that we must never forget the men and women who did not come home, and that we must never stop trying to return them to their families and the country they fought to protect.

WHITEHOUSE: The White House