Emerson said that "To be great is to be misunderstood." He also said that a great person constantly changes. He cited examples of great men like Pythagoras, Socrates, Jesus Christ, Luther, Copernicus, Galileo, and Newton. A great individual must also not violate one's nature even though that person may not be understood by the society.
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It means that they have colonized on land
The answer should be "delighted". Offended and disappointed would be negative, and satisfied is only slightly positive.