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δεινὸν ποιεῖσθαι

Γηράσκω δ᾽ αἰεὶ πολλὰ διδασκόμενος -> I grow old always learning many things
Solon the Athenian

Greek > English (Woodhouse Phrases Reversed)

δεινὸν ποιεῖσθαι = be angry, be annoyed, be indignant, take it ill, think it a hardship, think it a shame

⇢ Look up "δεινὸν ποιεῖσθαι" on Google | LSJ full text search (Translation based on the reversal of Woodhouse's English to Ancient Greek dictionary)