"by nature" are "chained to the land and plow," that even an educated peasant would always remain a peasant, because "it is impossible to transform a dog into a lynx." The szlachta were noble in the Aryan (see Alans) sense -- "noble" in contrast to the people over whom they ruled after coming into contact with them. The szlachta traced their descent from Lech/Lekh, who allegedly founded the Polish kingdom in about the fifth century. Lechia was the name of Poland in antiquity, and the szlachta's own name for themselves was Lechici/Lekhi. Richard Holt Hutton argued an exact counterpart of szlachta society was the system of tenure of southern India—an aristocracy of equality—settled as conquerors among a separate race. Some elements of the Polish state paralleled the Roman Empire in that full rights of citizenship were limited to the szlachta. According to British historian , the 16th-century szlachta ideal was a Greek polis—a body of citizens, a small merchant class, and a multitude of laborers. The laborers consisted of peasants in serfdom. The szlachta had the exclusive right to enter the clergy until the time of the three partitions of Poland, and the szlachta and clergy believed they were genetically superior to peasants. The szlachta regarded peasants as a lower species. Quoting Bishop of Poznań, Wawrzyniec Goślicki, herbu Grzymała (between 1530 and 1540–1607): "The kingdome of Polonia doth also consist of the said three sortes, that is, the king, nobility and people. But it is to be noted, that this word people includeth only knights and gentlemen. ... The gentlemen of Polonia doe represent the popular state, for in them consisteth a great part of the government, and they are as a Seminarie from whence Councellors and Kinges are taken." Military caste and aristocracy The szlachta were a caste, a military caste, as in Hindu society. In the year 1244, Bolesław, Duke of Masovia, identified members of the knights' clan as members of a genealogia: "I received my good servitors [Raciborz and Albert] from the land of [Great] Poland, and from the clan [genealogia] called Jelito, with my well-disposed knowledge [i.e., consent and encouragement] and the cry [vocitatio], [that is], the godło, [by the name of] Nagody, and I established them in the said land of mine, Masovia, [on the military tenure described elsewhere in the charter]." The documentation regarding Raciborz and Albert's tenure is the earliest surviving of the