今天的过度捕捞是在窃取后代的资源。

The purpose of computing is insight, not numbers.

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.

你无法改变风向，但你可以调整风帆。