Aristotle, Magna Moralia 1194a
“For example, it is fair that one who possesses much should pay a lot in taxes while one who has little should pay little”
οἷον ἀνάλογόν ἐστιν τὸν τὰ πολλὰ κεκτημένον πολλὰ εἰσφέρειν, τὸν δὲ τὰ ὀλίγα κεκτημένον ὀλίγα·
Plato, Republic 8 (568e)
“But, I was saying, we have wandered off topic. Let’s talk again about the tyrant’s camp, how he is going to pay for such a large and strange crew that’s never in the same place.
He said, “it is clear that if there is any money sacred to the state, he will spend it as long as what is left over remains, so that he can demand fewer taxes from the population.”
Ἀλλὰ δή, εἶπον, ἐνταῦθα μὲν ἐξέβημεν· λέγωμεν δὲ πάλιν ἐκεῖνο τὸ τοῦ τυράννου στρατόπεδον, τὸ καλόν τε καὶ πολὺ καὶ | ποικίλον καὶ οὐδέποτε ταὐτόν, πόθεν θρέψεται.
Δῆλον, ἔφη, ὅτι, ἐάν τε ἱερὰ χρήματα ᾖ ἐν τῇ πόλει, ταῦτα ἀναλώσει, ὅποι ποτὲ ἂν ἀεὶ ἐξαρκῇ τὰ τῶν ἀποδομένων, ἐλάττους εἰσφορὰς ἀναγκάζων τὸν δῆμον εἰσφέρειν.
Plato, Republic 1 (343e)
“As matters of state go, whenever there are taxes, the just person pays in more from the same amount on which the unjust man pays less. And when there are refunds, the former takes nothing while the lesser profits a lot.”
ἔπειτα ἐν τοῖς πρὸς τὴν πόλιν, ὅταν τέ τινες εἰσφοραὶ ὦσιν, ὁ μὲν δίκαιος ἀπὸ τῶν ἴσων πλέον εἰσφέρει, ὁ δ’ ἔλαττον, ὅταν τε λήψεις, ὁ μὲν οὐδέν, ὁ δὲ πολλὰ κερδαίνει.