Pericles

Fix your eyes on the greatness of Athens as you have it before you day by day, fall in love with her, and when you feel her great, remember that this greatness was won by men with courage, with knowledge of their duty, and with a sense of honor in action…

So they gave their bodies to the commonwealth and received, each for his own memory, praise that will never die, and with it the grandest of all sepulchers, not that in which their mortal bones are laid, but a home in the minds of men, where their glory remains fresh to stir to speech or action as the occasion comes by. For the whole earth is the sepulcher of famous men; and their story is not graven only on stone over their native earth, but lives on far away, without visible symbol, woven into the stuff of other men’s lives. For you now it remains to rival what they have done and, knowing the secret of happiness to be freedom and the secret of freedom a brave heart, not idly to stand aside from the enemy’s onset.

from the Funeral Oration 431 B.C. via Thucydides, via Boorstin