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The truth is that we are all capable of great evil, given the right circumstances.
一句话,先是太胆小,明知错的事却不敢不做;后来也还是太胆小,明知对的事却不敢去做。
国家一定要有直言进谏的臣子,上级必须有敢于提出反对意见的下级,议论国政的人不停止,各种不同政见的人相互辩论,才可以长久保存国家,使国家兴盛强大。也就是说言论自由是民众的基本权利,每个人都可以提出不同的政见,民众有平等参与政治的权利。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
The essence of mathematics lies in its power to reveal patterns and symmetries.