外交家应该具备尊重和理解其他国家和文化的能力，以及跨越语言和文化障碍进行沟通的能力。

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.

It is one thing to show a man that he is in an error, and another to put him in possession of truth.