Picking between experts

During one of our lessons, we worked on a conversation between experts on Philosophy, who spoke about many different matters and share their own opinions.

These are the main ideas I took from the records:

PERJUDICE #1: Not to believe people's opinion because of their physical appearence, it means, some people might think right despite they don't inspire confidence and credibility.

PERJUDICE #1: There are lots of different famous people, each one specialized on a matter: actors, phisics... So their success on a subject doesn't mean they have credibility on a different one (Example: a football player might not give a reliable opinion about economy)

PERJUDICE #3: Not to follow the majority. Each person has his own opinion about life matters. so it is not fair that thinking different than the rest of the people means be wrong.