A hero is someone who has given his or her life to something bigger than oneself.
2 Timothy 1:6-8
For this reason, I remind you to stir into flame the gift of God that you have through the imposition of my hands. For God did not give us a spirit of cowardice but rather of power and love and self-control. So do not be ashamed of your testimony to our Lord, nor of me, a prisoner of for his sake; but bear yor share of hardship for the gosple with the strength that comes from God.