A fine marksman is with a second rate rifle is far more effective than the reverse.
The best personal defense is an explosive counterattack.
If you must use your hands, use them with all the strength you possess... If you choose to strike, by all means strike hard.
If you find yourself under lethal attack don't be kind. Be harsh. Be tough. Be ruthless.
Bushido is all very well in its way, but it is no match for a 30-06.
Colonialism has a bad reputation in the modern context, but Colonial Africa was a far better place for both black and white before the colonists gave up.