Why did Hitler hate the Jews as well as other people?

When Hitler was young he was seeing the aryans and jews. The first one were suffering in their own country and the others - controlling a big part of the world, rich and successful. He thought aryans were superhumans and he didn't liked other nations like slavs, mongolians, niggers, arabians, jews etc. Maybe because of their success Hilter's biggest hatred was against jews. In fact I have heard that at the end of the war Hitler was disappointed from because germans gave up and said that aryans weren't the most pure race because they didn't conquered the world.