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Ответ:

My brother Jack is fond of science. His dream is to become a scientist. He has strong belief that he will be able to create a new theory. He doesn't believe in signs, he believes only in facts. There is a lot of sense in what he says.

What I said about my brother does not relate to me. I don't pay attention to mathematics, I prefer literature. When I say that math is dull, my brother always answers, "You're talking nonsense!"