A hero is someone who has ...

A hero is someone who has given his or her life to something bigger than oneself.
A hero is someone who has given his or her life to something bigger than oneself.

More phrases

When you have war, whether it's a war against drugs, war against terrorism, war overseas, the mentality of the people change and they're more willing to sacrifice their liberties in order to be safe and secure.
Who sows virtue reaps honor.
When a warrior goes down, you pick up his shield and go play in honor of him.
 Chip Kelly
We are all warriors. Each of us struggles every day to define and defend our sense of purpose and integrity, to justify our existence on the planet and to understand, if only within our own hearts, who we are and what we believe in.
 Steven Pressfield
When one has nothing to lose, one becomes courageous. We are timid only when there is something we can still cling to.

Quotes from the same author

Your sacred space is where you can find yourself again and again.
When we quit thinking primarily about ourselves and our own self-preservation, we undergo a truly heroic transformation of consciousness.
Love is a friendship set to music.
The warrior’s approach is to say ‘yes’ to life: ‘yes’ to it all.
The latest incarnation of Oedipus, the continued romance of Beauty and the Beast, stand this afternoon on the corner of Forty-second Street and Fifth Avenue, waiting for the traffic light to change.