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The ethical implications of genetic modification must be carefully considered.
我们祖先面临的主要生存威胁 - 捕食者、饥饿、疾病 - 在我们的恐惧和焦虑中留下了印记。
过去不是为了生活其中;它是一个结论的源泉,我们从中汲取以行动。
Climate change isn't a distant threat - it's reshaping our forests today.
A man, as a general rule, owes very little to what he is born with – a man is what he makes of himself.