To be conscious to one's self of having committed no unjust act throughout life is the cause of much pleasure.
τὸ μὴ συνειδέναι γὰρ αὑτοῦ τῷ βίῳ
ἀδίκημα μηδὲν ἡδονὴν πολλὴν ἔχει.
ἀδίκημα μηδὲν ἡδονὴν πολλὴν ἔχει.
Original text (Ancient Greek)