What metaphors are used in Sentimental Education by Gustave Flaubert?

THe narrative becomes a metaphor on wanting waht you do not have. At practically every point in Sentimental Education, Frederic wants only the things he cannot have. When he arrives in Paris, he wants to be a lawyer, but this bores him, so he becomes a writer. Frederic wants to use Monsieur Dambreuse as an opportunity for social climbing but does not take him up on his job offer. He is wishy-washy about investment projects, coming up on an opportunity and the backing away. When he conceives of an idea, it seems desirable to him; and when he is about to commit to completing the project he quickly moves to something else.