While men and women have more choice, there is still the human nature of survival, wherein human minds are wired to survive and have a generation that will outgrow other generations. This attitude of choosing pairs wisely is done in order to further double the chances of survival of children and avoid mishaps and abnormalities.
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Before its invention, bones, tortoise shells, and bamboo slips were all used as writing surfaces, but as Chinese civilization developed they proved themselves unsuitable because of their bulk and weight. Hemp fiber and silk were used to make paper but the quality was far from satisfactory.
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