When we do not fight for what we believe in then there is no purpose for us to live in this world. The purpose why we live includes the things that we believe in because this will tell us what kind of a person we really are and the inclinations we have on certain matters. Another good reason of speaking out is to deter anybody from doing wrongfully of others. This will enlighten them and the people around them that what they are doing should not be done. Always speak your mind and tell the truth along with that act.