Abraham Lincoln once said "Nearly all men can stand adversity, but if you want to test a man's character, give him power."This means men can do or overcome everything if they had some sort of power in their hands and you can clearly see a mans personality based on his actions while he has power.This is true because when a man has more power than others he is going to try to control them in a good or bad way.This can clearly seen this in the book Invincible by Sherrilyn Kenyon of a boy who is trying to learn unnatural powers.Nick Gautier is the main character an he is trying to learn unnatural powers,he is also fighting death and zombies,also he is struggling with school and his grades.