Story, first published: Galaxy Science Fiction, Oct. 1956

A group of greedy fortune hunters ... land their spaceship near a colossal miles-high, silo-shaped building. In the building, the looters find some "sticks" that can produce a living experience on another world. They have hit the jackpot, an entertainment that will make them all rich. An alien appears who tells them that the silo is a galactic university, specializing in home study and extension courses, with test taken only every thousand years. As representatives of the human race, the crew may apply. The captain goes along with the alien, thinking of ways to exploit his find, but the scheme backfires when the crew takes the basic orientation course. The hunters no longer care to make a fast buck, have become "honorable and honest", and will take their knowledge back and turn it over to the authorities. Not all the humans are so easily converted, however; the captain and the ship's doctor refuse to take the course and go on hunting for the jackpot.

Ewald, Robert J.: When the Fires Burn High and the Wind is from the North, p.60-61