The did enter Africa for their own personal gain yes i dont not believe that powerful countries should be allowed to enter weaker countries because they can take what little they do have and steal it to make them more powerful.An example would have been the British because they went and tried to take over other countries.
Mark Twain wants to add religious overtones (b)
Because St. Bernard is a dog but has a slightly religious name and a Presbyterian is a dog but also a British church.
Hope it helped,
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A specific philosophy of life