What phrase from portion of Brutus’ speech best demonstrates the character’s use of ethos?

Based on this work of satire, what is most likely the authors opinion?

Ineed . i need to write a story with this words. vapid, reverie, chastity, petty, invariably, posterity, axiom, pugnacious, bourgeoisie, knell

In this excerpt from act 1 scene v of macbeth what does lady macbeth imply about macbeth