The National World War II Memorial (search) last week. Commemorating the 60th anniversary of Normandy this week. For the greatest generation, the greatest moment to date. But time is slipping away.

This generation that saved the world is leaving the world, right now at the rate of 1,000 a day.

Pretty soon, they'll all be gone. I hope not for a while.

But I see the calendar and I see those faces -- brave, etched faces of character and courage -- and I worry. And I wonder.

What will happen when they're gone? Who will inspire us and lead us? Who will make us realize we're the great nation we are?

I'm sure the greatest generation had the greatest reverence for the generation that preceded it.

They rose to the occasion. I know we will too.

But that doesn't mean we don't honor them these special days and honor them all days for whatever days they're here. Because we're here, thanks to them.

Thanks to their bravery, their honor and their simple noble patriotism.

Sixty years ago, they invaded a beach and saved a world.

The least we can do is remember their cause and those here or not, honor their spirit.

Check out previous Common Sense columns and watch Neil Cavuto weekdays at 4 p.m. ET on "Your World with Cavuto."

Neil Cavuto serves as senior vice president, anchor and managing editor for both FOX News Channel (FNC) and FOX Business Network (FBN). He is anchor of FNC's Your World with Cavuto - the number one rated cable news program for the 4 p.m. timeslot - as well as the FNC Saturday show Cavuto on Business. He also hosts Cavuto on FBN weeknights at 8 p.m. In addition to anchoring daily programs and breaking news specials on FNC and FBN, Cavuto oversees business news content for both networks and FNC's weekend business shows, including Bulls & Bears, Forbes on Fox, and Cashin' In. Click here for more on Neil Cavuto.