Diogenes Laertius, Diogenes 71
“He used to say, however, that there was no success in life at all without practice and that this can conquer everything. For this reason, people must choose the types of practice nature demands to live well instead of useless toils—and to live unhappily is a type of madness.
For even despising pleasure is extremely pleasurable, when it has been practiced; and just as those who are used to pleasure feel discomfort when they try to opposite, so too do those who have practiced the opposite get more pleasure from hating pleasure than from pleasure itself.
These were the things Diogenes talked about and clearly did—for he debased the currency and gave no rule authority unless it was natural. He used to say that he lived the same kind of life Herakles did and valued nothing more than freedom.”
Οὐδέν γε μὴν ἔλεγε τὸ παράπαν ἐν τῷ βίῳ χωρὶς ἀσκήσεως κατορθοῦσθαι, δυνατὴν δὲ ταύτην πᾶν ἐκνικῆσαι. δέον οὖν ἀντὶ τῶν ἀχρήστων πόνων τοὺς κατὰ φύσιν ἑλομένους ζῆν εὐδαιμόνως, παρὰ τὴν ἄνοιαν κακοδαιμονοῦσι. καὶ γὰρ αὐτὴ τῆς ἡδονῆς ἡ καταφρόνησις ἡδυτάτη προμελετηθεῖσα, καὶ ὥσπερ οἱ συνεθισθέντες ἡδέως ζῆν, ἀηδῶς ἐπὶ τοὐναντίον μετίασιν, οὕτως οἱ τοὐναντίον ἀσκηθέντες ἥδιον αὐτῶν τῶν ἡδονῶν καταφρονοῦσι. τοιαῦτα διελέγετο καὶ ποιῶν ἐφαίνετο, ὄντως νόμισμα παραχαράττων, μηδὲν οὕτω τοῖς κατὰ νόμον ὡς τοῖς κατὰ φύσιν διδούς· τὸν αὐτὸν χαρακτῆρα τοῦ βίου λέγων διεξάγειν ὅνπερ καὶ Ἡρακλῆς, μηδὲν ἐλευθερίας προκρίνων.
This reminded me of the saying attributed to Democritus:
Democritus, fr. 200
‘Those who live without enjoying life are fools.’
ἀνοήμονες βιοῦσιν οὐ τερπόμενοι βιοτῆι. #Democritus