Could you please help me to understand the last two lines of the poem Shine, Republic by Robinson Jeffers
http://www.buchanan.org/h-121.html ?
But keep the tradition, conserve the forms, the observances, keep the spot sore. Be great, carve deep your heel-harks. The states of the next age will no doubt remember you, and edge their love of freedom with contempt of luxury. Thank you so much in advance.
Cadzao