Frederic Bastiat was a French economist and statesman. During and after the Revolution in 1848, he warned of the inevitable degeneration of socialism into communism in The Law. Previous Bastiat posts can be found here.
From The Law:
If you suggest a doubt as to the morality of these institutions, it is boldly said that "You are a dangerous innovator, a utopian, a theorist, a subversive; you would shatter the foundation upon which society rests." If you lecture upon morality or upon political science, there will be found official organizations petitioning the government in this vein of thought: "That science no longer be taught exclusively from the point of view of free trade (of liberty, of property, and of justice) as has been the case until now, but also, in the future, science is to be especially taught from the viewpoint of the facts and laws that regulate French industry (facts and laws which are contrary to liberty, to property, and to justice). That, in government-endowed teaching positions, the professor rigorously refrain from endangering in the slightest degree the respect due to the laws now in force."
Thus, if there exists a law which sanctions slavery or monopoly, oppression or robbery, in any form whatever, it must not even be mentioned. For how can it be mentioned without damaging the respect which it inspires? Still further, morality and political economy must be taught from the point of view of this law; from the supposition that it must be a just law merely because it is a law.
Another effect of this tragic perversion of the law is that it gives an exaggerated importance to political passions and conflicts, and to politics in general.
I could prove this assertion in a thousand ways. But, by way of illustration, I shall limit myself to a subject that has lately occupied the minds of everyone: universal suffrage.