Greetings!
I'm happy to help you with some editing suggestions!
Ideals and customs [ delete ,] are important in all cultures, but specific values differ from culture to culture. Values can be productive, like cleanliness and education, or
harmful like crime and cruelty. One quality valued by many
is honor. A person who has honor [delete "in his or herself"] will always stand for
what he or she believes in.
One may believe that Stephen Kumalo, Stephen Biko, and Donald Woods are the three characters that best demonstrate honor. - I don't think "may" is right here. You can just leave out that whole phrase "One may believe that" and start with the name of the first person. There is no need to qualify it.
I hope this helps!
Thanks,
Sarah, EssayForum.com
Sarah, EssayForum.com