"By Marxists we mean specifically those who adhere to historical and dialectical materialism. Among these are the orthodox Communists, whom we will investigate separately. First we shall consider Marxists who do not obey the discipline of the official Communist Party. 1. Possibilities. In the modern world, Marxists began the movement advocating structural change. They have technical experts in economics and in the physical and biological sciences. But dogmatism in the social sciences has been partially harmful to the orthodox Marxists who are the most emphatically dogmatic. We say “partially,” because orthodox socio-economic analyses are in harmony with the socio-economic structures of the indigent countries. As a matter of fact, if we compare Marxist analyses stricdy pertaining to the socio-economic structures of these countries with capitalist analyses, we will find that the Marxist analyses are better adapted to reality and especially to the expectations of the indigent majorities. With reference to economic planning, Marxists have held the first place, but it is important to recognize the difference between the purely economic, administrative, and technical mechanism of economic planning which authoritatively regulates investments, and the philosophy which inspired this regulation. In our time, this same regulation is inspired and practiced by virtue of other philosophies, for example in Israel. This proves that it is not necessarily connected with Marxist ideology. 2. Advantages. Among the advantages of Marxist planning we should note its orientation, which is specifically popular, and the value of its analyses of underdeveloped or developing societies. We should also keep in mind its tradition in the struggle for structural change and technical planning. 3. Disadvantages. The orthodox Marxists run the risk of being dogmatic in socio-economic matters which are most complex, variable, and contingent. Likewise, with regard to tactics, the party members follow prefabricated schemes which in many cases, as in Cuba, oblige them to diverge from the revolutionary struggles that are not in keeping with these schemes. With regard to heterodox Marxists, they can run the risk of pursuing truncated and diminished ends because they are confined within materialistic conceptions. As for the means employed, it is probable that many of them restrain and curb certain human rights."