Water has long been a universal agent for suppressing fires, but is not best in all cases.

Sensation prepares the soul to receive rational concepts from the universal Agent Intellect.

What unwinds the men from each other's embrace is none of these clichés; instead, Aciman, Proustian to the core, moves them apart, renders their beautiful city Atlantis, with the subtlest, most powerful universal agent: time.

Universal agents hold broad authority to act on behalf of the principal, e.g. they may hold a power of attorney (also known as a mandate in civil law jurisdictions) or have a professional relationship, say, as lawyer and client.

But this universal agent, whilst it is not univocal, nevertheless is not altogether equivocal, otherwise it could not produce its own likeness, but rather it is to be called an analogical agent, as all univocal predications are reduced to one first non-univocal analogical predication, which is being."