What are 3 key quotations in Chapter 6 of Chinua Achebe's Things Fall Apart?

The quotations must relate to one of the following:
-the characterization of Okonkwo
-ambition
-how power affects Okonkwo
-fear as a motivator
- identify beliefs values and traditions in Okonkwo's society

If you have read the book, this should not be difficult.

What quotations have you thought about?
Which of the items in the list do those quotations relate to?