Since those who fail to learn from history are doomed to repeat it — and since the cast of characters making pronouncements on the crisis in the Middle East is very much the same as it was three or four years ago — it seems like a good idea to travel down memory lane. Here’s what they said and when they said it:

“The greatest thing to come out of [invading Iraq] for the world economy ... would be $20 a barrel for oil.” Rupert Murdoch, chairman of News Corporation (which owns Fox News), February 2003

“Peacekeeping requirements in Iraq might be much lower than historical experience in the Balkans suggests. There’s been none of the record in Iraq of ethnic militias fighting one another that produced so much bloodshed and permanent scars in Bosnia.” Paul Wolfowitz, deputy secretary of defense and now president of the World Bank, Feb. 27, 2003

“Earlier this week, I traveled to Baghdad to visit the capital of a free and democratic Iraq.” President Bush, June 17, 2006

“People are doing the same as [in] Saddam’s time and worse. ... These were the precise reasons that we fought Saddam and now we are seeing the same things.” Ayad Allawi, Mr. Bush’s choice as Iraq’s first post-Saddam prime minister, November 2005

“My fellow citizens, not only can we win the war in Iraq, we are winning the war in Iraq.” President Bush, Dec. 18, 2005

“Regime change in Iraq would bring about a number of benefits for the region. ...Extremists in the region would have to rethink their strategy of jihad. Moderates throughout the region would take heart, and our ability to advance the Israeli-Palestinian peace process would be enhanced.” Vice President Dick Cheney, Aug. 26, 2002

“It’s time for Democrats who distrust President Bush to acknowledge that he will be the commander in chief for three more critical years, and that in matters of war, we undermine presidential credibility at our nation’s peril.” Senator Joseph Lieberman, Democrat of Connecticut, Dec. 6, 2005

“I cannot support a failed foreign policy. History teaches us that it is often easier to make war than peace. This administration is just learning that lesson right now.” Representative Tom DeLay, Republican of Texas, on the campaign against Slobodan Milosevic, April 28, 1999