The Romans used to say that courage is not the only virtue, but it's the only one that makes the other virtues possible.
Eternal vigilance is the price of sexual confidence.
The trade-off between freedom and security, so often proposed so seductively, very often leads to the loss of both.
The price of peace is eternal vigilance
Eternal vigilance is the price of knowledge.
The price of barbecue is eternal vigilance.
The cost of freedom is eternal vigilance
Eternal Vigilance is the price of democracy.
Vigilance is not only the price of liberty, but of success of any sort.