Conversation so far:
where did steve biko go to school?
He secured a scholarship, and in 1966 entered the "non-European" section of the University of Natal Medical School in Wentworth.
Did he join any activist parties on campus?
There, he joined what his biographer Xolela Mangcu called "a peculiarly sophisticated and cosmopolitan group of students" from across South Africa.
What was his dealings with him?
CANNOTANSWER.
Are there any other interesting aspects about this article?
The late 1960s was the heyday of radical student politics across the world, as reflected in the protests of 1968.
What protests did he partake in?
Biko and other black African delegates walked out of the conference in anger.
Did he partake in any activist activities?
CANNOTANSWER.
Can you tell me more about his role in student activist?
I realized that for a long time I had been holding onto this whole dogma of nonracism almost like a religion ...

Question: Who quoted this?
Self-contained rewrite: Who said  the quote about dogma and religion?