The socialist movement is not only the heart, but is a combination of heart plus head.
It is almost a truism to say that when the workers, as a class, couple their latent revolutionary fervour with socialist understanding, they become an indomitable force sweeping everything before it.
“Nothing is more powerful than an idea come of age, it is more powerful than the strongest armies.”
As to any fears that there is no room for differences of opinion in a socialist party, this simply isn’t so. Socialists have varying opinions on matters of a speculative nature, on interpretations of current events, on attitudes to cultural matters, specific aspects of science, even on projections of the actual workings of a socialist society.