People are used giving their own opinion. Everyone who has the faculty to talk already gave their opinion once. It is in humans genes. There is, in some case, opinions that are positive and some negative; as a result, sometimes, they may hurt. As an example, prejudice is a preconceived opinion, which may have been socially learned, shared by a group members, and likely to be favourable or unfavourable, even hostile, of a class or an individual referred. Prejudice is a dangerous thing that must be abolished. Their significance and their consequence are mostly intolerable.

Every human being on this planet is unique and different; nevertheless, he has the right to equal respect and regard, and to a positive environment, despite differences. Prejudice's primary objective is to have a preconceived idea referred to people who are different to themselves. Primarily in our society, prejudices are accentuated to homosexuals or different color skin people; furthermore, they are tense about everything that is abnormal in their daily lives. Therefore, sadness, lack of self-confidence, embarrassment, loneliness, shame and malaise are negative emotions and reasons to do not to regard prejudice as normal.

In more extreme cases, discrimination about a specific group can create mercies at the point of totally eliminate it. In the 30s, a global armed conflict has been provoked and killed more than 65 millions of people. On the head of the National Socialist Party German Worker (NSDAP), Adolf Hitler became Reich’s chancellor on 1933, then chosen as Germany’s president in 1934. The chancellor, who has been selected by interim as president, following the German ex-president death Hidenburg, ordered the complete and systematic extermination of citizens he did not regard as normal, or pure; for example, mentally handicapped person or Jews. Having a prejudice about them because he regarded them as inferior beings, Hitler managed to create an army to reduce people he considered