Second Messenger: The greatest griefs are those we cause ourselves.
τῶν δὲ πημονῶν
μάλιστα λυποῦσ᾿ αἳ φανῶσ᾿ αὐθαίρετοι.
μάλιστα λυποῦσ᾿ αἳ φανῶσ᾿ αὐθαίρετοι.
Original text (Ancient Greek)
Notes from Wikiquote
The keenest sorrow is to recognize ourselves as the sole cause of all our adversities.