I believe that the fact that Nero ruled the world but his own people turned against him is a perfect example of how being a wealthy person such as Nero does not guarantee a perfect life.
Hope this helps!
I strongly believe that time spent learning a trade for career development is as valuable as the time invested in a college degree.
I think that the most important thing is the time invested in your dreams, it doesn't matter if it is a college degree or a trade, nor if one takes longer than the other or if one of them will get you more money. Time spent in something you don't like to do, eventually, will be a waste because you will not be happy doing that job and will probably quit sooner or later.
Whether you pick one thing or the other, you must really love it, you have to be passionate about it and, if you do this, it'll be never a waste of time.
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Why does biff steal?
Biff steals things because it is his passive-aggressive way of getting back at people he feels have unfairly done better in life than he has,
What compels him to steal?
stealing gives him an excuse to quit whatever dead-end job he happens to be in at the moment.
Future?
This pattern of subtle revenge and avoiding of mundane responsibility is exposed to be a nearly life-long pattern for Biff, and one that will continue.