自由贸易能够提高国家整体的生产效益。
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.
任何牺牲基本自由以换取短暂安全的人，最后既得不到安全也得不到自由。（放弃基本的自由以换取苟安的人，终归失去自由，也得不到安全。）
