The rocks may be hard, but our resolve must be harder.

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.

文明被描述为对一系列挑战的回应结果，而其中最大的挑战始终是气候。

人性本善，但罪恶的社会环境使人变坏了。