If one rejects laissez faire on account of mans fallibility and moral weakness, one must for the same reason also reject every kind of government act… - Ludwig von Mises

True, a socialistic society could see that 1000 litres of wine were better than 800 litres. It could decide whether or not 1000 litres of wine were to be preferred to 500 litres of oil. Such a decision would involve no calculation. The will of some man would decide. But the real business of economic administration, the adaptation of means to ends only begins when such a decision is taken. And only economic calculation makes this adaptation possible. Without such assistance, in the bewildering chaos of alternative materials and processes the human mind would be at a complete loss. Whenever we had to decide between different processes or different centres of production, we would be entirely at sea.

If one rejects laissez faire on account of man's fallibility and moral weakness, one must for the same reason also reject every kind of government action.

The goal of liberalism is the peaceful cooperation of all men. It aims at peace among nations too. When there is private ownership of the means of production everywhere and when laws, the tribunals and the administration treat foreigners and citizens on equal terms, it is of little importance where a country's frontiers are drawn. Nobody can derive any profit from conquest, but many can suffer losses from fighting. War no longer pays; there is no motive for aggression. The population of every territory is free to determine to which state it wishes to belong, or whether it prefers to establish a state of its own. All nations can coexist peacefully, because no nation is concerned about the size of its state.