Why does goethe say we need to "watered the furrows with tears"

In a bullet-list or chart illustrate how the greek concepts of arete, hubris, até, and nemesis (rosenberg 122) specifically apply to odysseus and to oedipus? finally, what is each hero’s ultimate (and specific) epiphany ("a sudden, intuitive perception of or insight into the reality or essential meaning of something, usually initiated by some simple, homely, or commonplace occurrence or experience")?