To say of what is that it is not, or of what is not that it is, is false, while to say of what is that it is, and of what is not that it is not, is true.
Works Translated Into English Under the Editorship of W. D. Ross (ed. 1908)
To say of what is that it is not, or of what is not that it is, is false, while to say of what is that it is, and of what is not that it is not, is true.
Works Translated Into English Under the Editorship of W. D. Ross (ed. 1908)