Variant translations:
Zeus has led us on to know,
the Helmsman lays it down as law
that we must suffer, suffer into truth.
We cannot sleep, and drop by drop at the heart
the pain of pain remembered comes again,
and we resist, but ripeness comes as well.
From the gods enthroned on the awesome rowing-bench
there comes a violent love.
Robert Fagles, The Oresteia (1975)
God, whose law it is
that he who learns must suffer.
And even in our sleep, pain that cannot forget
falls drop by drop upon the heart,
and in our own despite, against our will,
comes wisdom to us by the awful grace of God.
Edith Hamilton, The Greek Way (1930), pp. 61 and 194 ( Google Books https://books.google.com/books?id=D3QwvF3GWOkC&lpg=PA61&ots=BacvHvGm6e&dq=%22And%20in%20our%20own%20despite%2C%20against%20our%20will%2C%20Comes%20wisdom%22%20-kennedy&pg=PA194#v=onepage&q=%22our%20own%20despite%22&f=false)
Robert F. Kennedy quoted these lines in his speech announcing the assassination of Martin Luther King, Jr. on 4 April 1968. His version http://www.americanrhetoric.com/speeches/rfkonmlkdeath.html:
Even in our sleep, pain which cannot forget
falls drop by drop upon the heart
until, in our own despair, against our will,
comes wisdom through the awful grace of God.
Variant translations of πάθει μάθος:
By suffering comes wisdom.
The reward of suffering is experience.
Wisdom comes alone through suffering.
Source: Oresteia (458 BC), Agamemnon, lines 176–183, as translated by Ian Johnston ( Google Books https://books.google.com/books?id=qz1HpBZ1fTwC&lpg=PA13&ots=C7aohrZRF1&dq=Drips%20in%20our%20hearts%20as%20we%20try%20to%20sleep%2C&pg=PA13#v=onepage&q=Drips%20in%20our%20hearts%20as%20we%20try%20to%20sleep,&f=false)
“Thou shalt learn,
Late though it be, the lesson to be wise.”
Source: Oresteia (458 BC), Agamemnon, line 1425 (tr. E. H. Plumptre)
“I think the slain care little if they sleep or rise again.”
trans. https://archive.org/stream/agamemnonofaesch015545mbp/agamemnonofaesch015545mbp#page/n38/mode/1up Gilbert Murray
Oresteia (458 BC), Agamemnon
“May Morning, as the proverb runs, appear
Bearing glad tidings from his mother Night!”
Source: Oresteia (458 BC), Agamemnon, lines 264–265 (tr. E. H. Plumptre)
“Oh me, I have been struck a mortal blow right inside.”
Source: Oresteia (458 BC), Agamemnon, line 1343
“Within one cup pour vinegar and oil,
And look! unblent, unreconciled, they war.”
Source: Oresteia (458 BC), Agamemnon, lines 322–323 (tr. E. D. A. Morshead)
“God on high
Looks graciously on him whom triumph's hour
Has made not pitiless.”
Source: Oresteia (458 BC), Agamemnon, lines 951–952 (tr. E. D. A. Morshead)
“I, of set will, speak words the wise may learn,
To others, nought remember nor discern.”
Source: Oresteia (458 BC), Agamemnon, lines 38–39 (tr. E. D. A. Morshead)
“Too true it is! our mortal state
With bliss is never satiate.”
Source: Oresteia (458 BC), Agamemnon, lines 1331–1332 (tr. E. D. A. Morshead)
“Dangerous is a people's voice charged with wrath.”
Source: Oresteia (458 BC), Agamemnon, line 456 (tr. Herbert Weir Smyth)
“Life envy-free is life unenviable.”
Source: Oresteia (458 BC), Agamemnon, line 939 (tr. Anna Swanwick)
“Zeus, first cause, prime mover; for what thing without Zeus is done among mortals?”
Source: Oresteia (458 BC), Agamemnon, line 1485
“It is in the character of very few men to honor without envy a friend who has prospered.”
Source: Oresteia (458 BC), Agamemnon, lines 832–833