Iolaus: (when asked to deliver invitations) Through rain, sleet, and snow, I'm your man.
Often incorrectly cited as the creed of the US Postal Service, this is actually a paraphrase of the Greek Historian Herodotus, who was writing about the ancient Persian courier service. He wrote: "It is said that as many days as there are in the whole journey, so many are the men and horses that stand along the road, each horse and man at the interval of a day's journey; and these are stayed neither by snow nor rain nor heat nor darkness from accomplishing their appointed course with all speed." (trans. A.D. Godley 1924)