Novus ordo seclorum is a famous Latin phrase that means "a new order of the ages". It is a phrase that was inspired by old Roman and Greek writings, and was made famous by being included on the Great Seal of the United States. It is meant to be a reminder that the United States is a unique country with a unique set of values and beliefs, and is meant to represent the idea that the United States is a force for progress and goodness in the world.