The South African government implemented an education system called Christian National Education (CNE). The basis of this system is that a person's social responsibilities and political opportunities are defined by that person's ethnic identity.

Which principle formed the foundation of christian national education? Let's have some stream of consciousness first.
The relevant sentence in the passage is: The basis of this system is that a person's social responsibilities and political opportunities are defined by that person's ethnic identity. So, the answer is a person 's social responsibilities and political opportunities are defined by that person 's ethnic identity.