How do we curb the issue of discrimination in Human Race?

I don't think racism will ever disappear. However by making a law that prohibits racism is a start. In Greece for example there is a law (currently in the making) for racists, and their punishment comes heavy.

In the classroom a teacher should enforce rules against racism. Explaining why the human race needs unity and not division.

Though it is difficult now also. because no one can wipe out the discrimination completely. It exist every where in every country and every organization.But it can be reduce by strict laws by the government and strict and transparent administration in the organisations.priority should be given to the compatibility instead of caste creed and culture.