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The idea that love conquers all is an example of a universal truth.
Universal truths are universal because they are recognized everywhere in the world - every nation in the world knows that in the end, love wins over everything else. It is a truth that we have been taught to believe since we were kids, all over the globe, which is why that should be the correct answer.
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The first thing a writer should begin with in his research is to <span>examine broad areas of interest. </span>Having had <span>a general sense of an </span>area<span> in which he/she is interested, the writer can then go on </span>to choose a topic for research in that area f interest, with a good understanding of why the research is to be done.