Justice

Nonviolence means avoiding not only external physical violence but also internal violence of spirit. You not only refuse to shoot a man, but you refuse to hate him.
~ Martin Luther King, Jr.

First they came for the Socialists, and I did not speak out — because I was not a Socialist. 

Then they came for the Trade Unionists, and I did not speak out — because I was not a Trade Unionist. 

Then they came for the Jews, and I did not speak out — because I was not a Jew. 

Then they came for me — and there was no one left to speak for me.

~ Martin Niemoller (1892-1984)
Protestant pastor who opposed the Nazi regime
and spent the last 7 years of Nazi rule in concentration camps

On some positions, Cowardice asks the question, “Is it safe?” Expediency asks the question, “Is it politic?” And Vanity comes along and asks the question, “Is it popular?” But Conscience asks the question “Is it right?” And there comes a time when one must take a position that is neither safe, nor politic, nor popular, but he must do it because Conscience tells him it is right.

~ Martin Luther King, Jr.