What does this quote mean?

“when all the senses are stilled, when the mind is at rest, that say the wise, is the highest state.”

Answer which of the following was a major outcome of european imperialism in africa after the industrial revolution? o a. the area around the suez canal experienced decades of military conflict. b. africans in the belgian congo suffered forced labor and oppression. o c. the discovery of rich natural resources led to african economic prosperity. o d. europeans brought disease to central africa, killing thousands.