Parmenides

"Parmenides entry by John Palmer in the Stanford Encyclopedia of Philosophy"

"There is one story left, one road: that it is. And on this road there are very many signs that, being, is uncreated and imperishable, whole, unique, unwavering, and complete."

"Do not let habit, born from experience, force you along this road, directing aimless eye and echoing ear and tongue; but judge by reason the much contested proof which I have spoken."

"The only roads of enquiry there are to think of: one, that it is and that it is not possible for it not to be, this is the path of persuasion ; the other, that it is not and that it must not be — this…"

"For it is the same thing that can be thought and that can be."

"Never will this prevail, that the things that are not are — bar your thought from this road of inquiry."

"You must learn all things, both the unshaken heart of persuasive truth, and the opinions of mortals in which there is no true warranty."

"Parmenides' of Elea Way of Truth with an annotated bibliography and a list of critical editions"