An ambassador is not simply an agent; he is also a spectacle.
— Walter Bagehot

Advertisements are of great use to the vulgar. First of all, as they are instruments of ambition. A man that is by no means big enough for the Gazette, may easily creep into the advertisements; by which means we often see an apothecary in the same paper of news with a plenipotentiary, or a running footman with an ambassador.
— Joseph Addison

An ambassador is an honest person sent to lie abroad for their country.
— Sir Henry Wotton

He who plays advisor is no longer ambassador.
— Pierre Corneille

I've been a Goodwill Ambassador for the UNICEF and the UNICEF family for more than twelve years.
— Danny Glover