心理活动的目的是引导行为。
The purpose of mental activity is to guide action.
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.
I don’t play for the fame; I play for the love of the game.
房子是居住的机器。