Nicolaus Copernicus Quote: No.31
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To know that we know what we know, and to know that we do not know what we do not know, that is true knowledge. Nicolaus Copernicus | Refcard PDF ↑
To know that we know what we know, and to know that we do not know what we do not know, that is true knowledge. Nicolaus Copernicus | Refcard PDF ↑