Ratio atque usus

RATIO ATQUE USUS (Heraldic motto) Language: Latin Translation in English: Theory and practice (many similar translations have been proposed) Origin : Julius Caesar, the Bello Gallica Used by : Royal Institute of Chemistry

Overview of mottoes in Heraldry of the World	Heraldry of the World
All mottoes in all languages Total number of mottoes : 12,916	Main languages: Mottoes in Latin (6,959) Mottoes in English (4,165) Mottoes in French (388) Mottoes in Portuguese (227) Mottoes in Spanish (221) Mottoes in Afrikaans (128) Mottoes in Welsh (58) Mottoes in Dutch (59) Mottoes in Irish (48) Mottoes in Scottish (37) Mottoes in Malagasy (16)

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