# Institutes of Justinian 1.33-41

Roman Law and Society, Institutes of Justinian, Lines 1.33-1.41. Latin.

Canonical: https://interlinea.aeterna-institute.org/library/latin/roman-law-and-society/institutes-of-justinian/1.33

7. The edicts of the praetors are also of great authority. These edicts are called the ius honorarium, because those who bear honors [i.e., offices] in the state, that is, the magistrates, have given them their sanction. The curule aediles also used to publish an edict relative to certain subjects, which edict also became a part of the ius honorarium.
8. The answers of the jurisprudenti are the decisions and opinions of persons who were authorized to determine the law. For anciently it was provided that there should be persons to interpret publicly the law, who were permitted by the emperor to give answers on questions of law. They were called jurisconsulti; and the authority of their decision and opinions, when they were all unanimous, was such, that the judge could not, according to the constitutiones, refuse to be guided by their answers.
9. The unwritten law is that which usage has established; for ancient customs, being sanctioned by the consent of those who adopt them, are like laws.
10. The civil law is not improperly divided into two kinds, for the division seems to have had its origin in the customs of the two states, Athens and Lacedaemon. For in these states it used to be the case, that the Lacedaemonians rather committed to memory what they observed as law, while the Athenians rather observed as law what they had consigned to writing, and included in the body of their laws.
11. The laws of nature, which all nations observe alike, being established by a divine providence, remain ever fixed and immutable. But the laws which every state has enacted, undergo frequent changes, either by the tacit consent of the people, or by a new law being subsequently passed.

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Roman Law and Society, Institutes of Justinian. Text: The Latin Library (thelatinlibrary.com), used with permission. Changes: HTML markup removed and the text divided into reading sections by Interlinea.
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