The ancient philosophers had their disputes upon the origin of ideas but they agreed when it came to the abhorrence of work. "Nature," said Plato in his social utopia, his model republic, "Nature has made no shoemaker nor smith. Such occupations degrade the people who exercise them. Vile mercenaries, nameless wretches, who are by their very condition excluded from political rights. As for the merchants accustomed to lying and deceiving, they will be allowed in the city only as a necessary evil. The citizen who shall have degraded himself by the commerce of the shop shall be prosecuted for this offense. If he is convicted, he shall be condemned to a year in prison; the punishment shall be doubled for each repeated offense."[29] In his "Economics," Xenophon writes, "The people who give themselves up to manual labor are never promoted to public offices, and with good reason. The greater part of them, condemned to be seated the whole day long, some even to endure the heat of the fire continually, cannot fail to be changed in body, and it is almost inevitable that the mind be affected." "What honorable thing can come out of a shop?" asks Cicero. "What can commerce produce in the way of honor? Everything called shop is unworthy of an honorable man. Merchants can gain no profit without lying, and what is more shameful than falsehood? Again, we must regard as something base and vile the trade of those who sell their toil and industry, for whoever gives his labor for money sells himself and puts himself in the rank of slaves."[30] Proletarians, brutalized by the dogma of work, listen to the voice of these philosophers, which has been concealed from you with jealous care: A citizen who gives his labor for money degrades himself to the rank of slaves, he commits a crime which deserves years of imprisonment.