How Would You Service a $140k Student Loan Debt?

just as the title states, how would you service a $140k student loan debt?

1) pay interest and principle aggressively to retire the debt obligation.
2) pay interest only and carry the principle debt until my death or the death of the dollar; whichever comes first

3) ?

i have no other debt, aside from these [unsecured] student loans.

for the past year or so, ive been paying interest only viewing this position as my ultimate dollar short...

comments, insults, feedback, advice all appreciated.