Greeks lived 400 years as prisoners of the turks. But even when everything seemed lost they didn't give up. Why should I?

"Until when are we, oh brave young men, going to live in constraint,
lonely like lions, on the ridges of the mountains?
Better have an our of free life/freedom
than forty years of slavery and prison.
Shall we dwell in caves, just looking out at the branches,
leaving from the world into the bitter slavery?
Better live one hour in freedom
than forty years in slavery and prison."