Connect to the play

Based on the play, we learn that the best course of action is to "not" listen to those around you.  Those who kill Caesar bias some of the assassins with their own take on the question of Caesar and his politics.  All of the men would have been better to think things through and decide to do what they do based on intelligent facts and what makes the most sense.  These men were "persuaded" and peer pressure is not always a good force to give in to.