Likewise, if people wish to travel within their town and visit the country, they have to join in the country labor. If a person is found traveling without a passport more than once, they are condemned to slavery. Any surplus, such as corn, honey, flax, wool or cattle, is exported. A seventh of the exports are given to the poor in the importing countries, and the rest are sold for moderate prices. The money raised is used for imports.
Any excess money is stored in gold or silver in the country's treasury and saved for times of war .
This is necessary because the Utopians prefer to hire a foreign army, which they pay well, than to have their own people fight. For this reason, they have a very large treasury. This money does not, however, mean anything to them, as they do not think of gold or silver as valuable metals. This is because the Utopians value things according to their usefulness, and gold and silver are not very useful. In order to make sure of this, the law requires that chamber pots and close-stools be made of gold or silver, and that these metals should be used for nothing else other than jewelry for slaves, thus decreasing its appeal.