english: "To say that what is is not, or that what is not is, is false; but to say that what is is, and what is not is not, is true; and therefore also he who says that a thing is or is not will say either what is true and what is false."1c
non_english: Nó cliceáil anseo: WEB -- (Scrollaigh síos beagán a fheiceáil ar an gCód leabú)