The correct answer present and future social conditions. The two concepts that H. G. Wells connect in this excerpt from The Time machine are the present and future social conditions. The present and the future social conditions have a lot of differences in which they are usually far from each other.
Jonathan should try to figure out what exactly bothers him about his background, and whether this is fair. He could also try to change some of the things he dislikes. If he realizes that his complaints are unfair, he could try to look for groups that are very accepting, or that have a lot in common with him, and try to join these first. If none of this works, Jonathan could try to talk to a therapist who might be able to help him work through these negative feelings.