Okonkwo is a hero in the Umoufia clan. He has physical strength, and is a excellent solider in warfare, but Okonkwo has a tragic flaw. He has the fear of seeming weak, and becoming like his father. He is known as a tragic hero.
"He had no patience with unsuccessful men. He had no patience with his father". (Chapter 01)
"His wives, especially the youngest, lived in perpetual fear of his fiery temper, and so did his little children. Perhaps down in his heart Okonkwo was not a cruel man, but his whole life he was dominated by fear, the fear of failure and of weakness." (Chapter 02)
"Okonkwo's fear was greater than these. That was not external but lay deep within himself. It was the fear of himself, lest he should be found to resemble his father." (Chapter 02)
"And so Okonkwo was ruled by one passion. To hate everything that his father Unoka had loved." (Chapter 02)
"He heard Ikemefuna cry, "My father. they have killed me!" as he ran towards him. Dazed with fear, Okonkwo drew his machete and cut him down. He was afraid of being thought weak." (Chapter 07)