No, you just need a few lines:
a) Do not spend more than you earn.
b) If you are breaking (a) rule, do not use debt to finance stuff that you do not need and goes down in value. Yes, that's your car unless you use it for work and is adequately sized, that is you 54 inch TV and the subscription to Netflix.
c) If you get into debt, use it to finance you roof, not your swimming pool.
Yes, that's all a man needs in their life and these are the basics! People often indulge themselves in debts for the things they don't need. I too had a similar fate back in 2010 when I first started my career. I had a good job and the bank where I used to have my salary account, offered me a credit card with good limit. The very next day, I had purchased a watch worth 15 grand in my local currency in EMI. I my country, credit cards used to charge 4% monthly interest at that time, so I ended up paying almost 7 grand in interest. So a watch which costs 15 grand in open market, I paid around 22 grand for that! But lessons learned so I have never went back to that route again ever.
But one thing I agree with the author, is about real estate investment! In metro cities, real estate is the only investment that will give a regular income and an inflation adjusted value for future. Things may be different for small towns but for metro cities, real estate is still a great investment!