She did not follow him. She was a bachelor of arts, but he had gone beyond her limitations. This she did not comprehend, attributing her incomprehension to his incoherence.
This is foreshadowing towards the end of the novel where Martin's writing does not undergo a change, yet society begins to accept his writing when they once disregarded it. Perhaps this is also criticizing how many writers become popular past their time and how society's view of literature is fickle in its sense of appreciation of writing. It is also interesting how in the context of the novel, society refuses to accept Martin until he once again becomes mechanical and unfeeling. Despite his efforts to escape the dreadfulness of the working class, he ultimately succumbs to the same fate in the middle class. Again, the quote reflects the overall attitude of the bourgeoisie towards Martin's "work" and how their attitudes are later reversed towards the end of the story. There is also an interesting parallel in that Ruth believes she does not understand because he is incoherent, yet Martin is disappointed because she cannot grasp the underlying truth he is trying to show in his writing. Perhaps the novel's conclusion is a critique of being unable to ultimately escape one's class, as in the case of Martin Eden he was so absorbed in the the process and experience of bettering himself and his writing that once he had attained his goal he was unable to cope with life without anything else to "work" towards. That is, the process of writing had become his version of washing clothes in the laundromat.