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Every improvement in the circumstances of the society tends either directly or indirectly to raise the real rent of land, to increase the real wealth of the landlord, his power of purchasing the labour, or the produce of the labour of other people.

True innovation comes from a deep understanding of user needs.

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

每本書都是作者與讀者之間的對話。

每個人內心都承載著人類的所有時代。