Noli turbare circulos meos!
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“Noli turbare circulos meos!” (or Ancient Greek: “Μη μου τους κύκλους τάρατε!” (Me mou tous kýklous táratte!)) is a Latin phrase. It means “Do not disturb my circles!”.
[edit] Origin
According to legend, the phrase refers on the Ancient Greek mathematician and astronomer Archimedes. When the Romans had conquered the city Syracuse in 212 BC, the Roman general Marcus Claudius Marcellus ordered to reprieve Archimedes. Some soldiers entered the house of Archimedes and one of the soldiers asked Archimedes who he was. But, according to Valerius Maximus (Facta et dicta memorabilia), Archimedes just answered “Noli, obsecro, istum disturbare” (I ask you not to disturb that [sand]), because Archimedes was so engrossed in the circles drawn on the sand in front of him. After that one of the soldiers killed Archimedes, despite the order of Marcus Claudius Marcellus.

