The price of solitude in the modern world is eternal vigilance.

It has been said that the price of liberty is eternal vigilance.

These ended with "Remember: without eternal vigilance, it can happen here."

He concludes that the price of their freedom is eternal vigilance.

For the most expensive bikes, eternal vigilance is the only answer.

But that will require more time, and as we have had ample opportunity to learn, eternal vigilance.

Eternal vigilance is not a term to be dismissed lightly.

Beside the map was a sign that said, "The price of freedom is eternal vigilance."

At this stage, eternal vigilance is the price of saving the bacon.

But the true moral of the fable was the need for eternal vigilance.