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坏人活着是为了吃与喝,而好人却是为了活着才吃与喝。
Without food, man can live at most but a few weeks; without it, all other components of social justice are meaningless.
白云谦卑地站在天边,晨光给它披上壮丽的光彩。
The greatest reward in research is knowing that your work can save lives.