What is a true adventurer?

True adventurers have never been plentiful. They who are set down in print as such have been mostly business men with newly invented methods. They have been out after the things they wanted–golden fleeces, holy grails, lady loves, treasure, crowns and fame. The true adventurer goes forth aimless and uncalculating to meet and greet unknown fate. A fine example was the Prodigal Son–when he
started back home.

O. Henry, The Green Door