Attribuita a Parmenides
«Nothing comes from nothing (ex nihilo nihil fit).»
Falsa attribuzione
Verdetto
Non si trova nell'opera di Parmenides
The idea is in B8.7–10, but the Latin formula is not his: it comes from Lucretius (I 150, "nil posse creari de nilo") and scholasticism. It is ascribed to him through textbook summary.
Ciò che ha detto davvero
Parole verificate di Parmenides
«Meet it is that thou shouldst learn all things, as well the unshaken heart of well-rounded truth, as the opinions of mortals in which is no true belief at all.»
DK 28 B1.28–30, en Sexto Empírico, Contra los matemáticos VII 111, y Simplicio, Comentario al Sobre el cielo 557. Griego: Diels-Kranz; inglés: John Burnet, Early Greek Philosophy (1908); español: traducción propia.
«The first, namely, that It is, and that it is impossible for it not to be, is the way of belief, for truth is its companion. The other, namely, that It is not, and that it must needs not be,—that, I tell thee, is a path that none can learn of at all.»
DK 28 B2.3–6, en Proclo, Comentario al Timeo I 345, y Simplicio, Comentario a la Física 116. Griego: Diels-Kranz; inglés: John Burnet, Early Greek Philosophy (1908); español: traducción propia.
«For it is the same thing that can be thought and that can be.»
DK 28 B3, en Clemente de Alejandría, Stromata VI 23, y Plotino, Enéadas V 1, 8. La construcción admite varias traducciones («lo mismo es lo que puede pensarse y lo que puede ser»). Griego: Diels-Kranz; inglés: John Burnet, Early Greek Philosophy (1908); español: traducción propia.