How does Zola use foreshadowing in Florent's tutoring work with Muche?

Tutoring Muche later proves to be a factor in Florent's eventual undoing as the words Florent instructs Muche to copy are considered derisive and traitorous to the French Empire of the day. Specifically, a sentence along the lines of "The day of justice will come... The suffering of the just is the condemnation of the oppressor," proves to the reader that Florent cavalierly allows his burgeoning political aspirations to permeate what should have been an activity no more suspect than learning the alphabet (128). Later in the novel, Muche's lesson books will be confiscated by the authorities because of their revolutionary writings.