Agathon, fr. 5

Even god is deprived of this one thing:
To render undone whatever has been done.

μόνου γὰρ αὐτοῦ καὶ θεὸς στερίσκεται,
ἀγένητα ποιεῖν ἅσσ’ ἂν ᾖ πεπραγμένα

Agathon, tragic poet, guest-star in Platonic dialogues and a play by Aristophanes, may not have known he was an early formulator of a time-travel paradox…

Democritus, fr. 296

 

 

“Old age is the perfect handicap: it has everything and lacks everything.”

 

γῆρας ὁλόκληρός ἐστι πήρωσις·

πάντ’ ἔχει καὶ πᾶσιν ἐνδεῖ.

Demosthenes, Philippic 1.2

 

 

“What is worse from bygone days provides the best safeguard for the future.”

 

 

ὃ γάρ ἐστι χείριστον αὐτῶν ἐκ τοῦ παρεληλυθότος χρόνου, τοῦτο πρὸς τὰ μέλλοντα βέλτιστον ὑπάρχει.

Parmenides, fr. 6.16

 

 

“The path of all things goes backwards.”

 

 

…πάντων δὲ παλίντροπός ἐστι κέλευθος.

 

Zeno (Aristotle, Metaphysics, Β 4.1001 b7)

 

 

[Zeno said that] “That which does not make something bigger or smaller when it is added or taken away is not real.”

 

ὃ γὰρ  µήτε προστιθέµενον µήτε ἀφαιρούµενον ποιεῖ µεῖζον

µηδὲ ἔλαττον, οὔ φησιν εἶναι τοῦτο τῶν ὄντων

 

From Zeno of Elea, a student of Parmenides.  Famous for paradoxes (he even appears as an interlocutor for Socrates in Plato’s Parmenides).

(Not the Zeno who founded Stoicism)