Read the excerpt from act 3, scene 1, of Julius Caesar . CAESAR: I must prevent thee, Cimber. These couchings and these lowly courtesies Might fire the blood of ordinary men, And turn preordinance and first decree Into the law of children. Be not fond To think that Caesar bears such rebel blood That will be thawed from the true quality With that which melteth fools: I mean sweet words, Low-crookèd courtesies, and base spaniel fawning. Thy brother by decree is banished. If thou dost bend and pray and fawn for him, I spurn thee like a cur out of my way. Know Caesar doth not wrong but with just cause, Nor without cause will he be satisfied. What is the central idea of this excerpt?