Jiddu Krishnamurti:

To enable the child to grow up free from prejudice, one has first to break down all prejudice within oneself, and then in one’s environment—which means breaking down the structure of this thoughtless society which we have created. At home we may tell the child how absurd it is to be conscious of one’s class or race, and he will probably agree with us; but when he goes to school and plays with other children, he becomes contaminated by the separative spirit. Or it may be the other way around: the home may be traditional, narrow, and the school’s influence may be broader. In either case there is a constant battle between the home and the school environments, and the child is caught between the two.