In Canto XXVI of the Inferno, Ulysses describes his final voyage, and explains why he’s burning in hell:
Nor fondness for my son, nor reverence
For my old father, nor the due affection
Which joyous should have made Penelope,
Could overcome within me the desire
I had to be experienced of the world,
And of the vice and virtue of mankind;
Or Tennyson’s aged Ulysses:
Made weak by time and fate, but strong in will
To strive, to seek, to find, and not to yield.
Both poems seem to be describing an Ithican mid-life crisis.