欧宝娱乐

“Fl茅ctere si n茅queo s煤peros Acheronta movebo - If I cannot move heaven, I will raise hell.”
― Virgil, The Aeneid

“1. An 'unit' is that by virtue of which each of the things that exist is called one.
2. A 'number' is a multiple composed of units.”
― Euclid, Euclid's Elements