I think there are fundamental Constitutional rights that are in danger of being infringed without regard to both the practical and principle consequences.  

One doesn't have to, but it is almost worth getting your license and learning the trade first, then knowing the principles of business structuring and management. 

Less principle paydow.I know this isn't the question the OP asked, but it's relevant as paying cash for a cheap home would take similar capital to a down payment on a quality home.

Basically I wanted to know what books and quotes had had the greatest effect on his life to this point and here was his response on 10/8/12:“Alright, Andy, here you go.BooksThe Greatest Salesman in the World by Og MandidoI've read this one twice and it deeply impacted my thinking about success and the basic principles of success; takes 10 months to read as instructedThe 21 Irrefutable Laws of Leadership by John MaxwellI've read this one at least 3 or 4 times; phenomenal leadership teacher; I've read probably a dozen of his books Rich Dad, Poor Dad by Robert KiyosakiDeeply influenced my ideas about money, investments, and business; I've read 4 or 5 of his books and highly recommend playing his Cash Flow Game to beginning investorsThe Richest Man in Babylon by George ClasonA huge influence on my ideas about money managementThe 7 Habits of Highly Effective People by Stephen CoveyPhenomenal book about success in lifeThe Four Hour Work Week by Tim FerrisThis book is insane; a book about the balance of what wealth and lifestyle really means; this is a paradigm changerThe Millionaire Mind by Thomas StanleyExcellent research based book on what a millionaire really looks like; about consumerism and money managementHow To Win Friends and Influence People by Dale CarnegieFoundational book about people skillsThe E-Myth by Michael GerberAn excellent book about business systemsSkill With People by Les GiblinA very short and very practical book about people skillsThe Traveler's Gift by Andy AndrewsA great fiction book about success principlesThink and Grow Rich by Napoleon HillFoundational book about wealth mentalityA couple of biographies that I remember off the top of my head:Sam Walton, Made in America by Sam WaltonTrump, The Art of the Deal by Donald TrumpAnd some biographies that I don't remember the title but their general stories had profound effects on my thinking: Andrew Carnegie, Martin Luther King Jr, Teddy Roosevelt, and Mohandas Gandhi.Quotes - I've referenced ones that I've come back to over and over throughout my life."

That is one reason why you never sue on principle and why attorneys are picky about the contingency based cases they will take.

I believe the banks can handle all the mortgage needs of the country, but it will come down to a simple economics principle of demand and supply.

Always know who the principle owner is and speak only to them.

Received only a return of principle. 

Paragraph (h)Question from newest book Florida applicants should use,Florida Real Estate Principles, Practices and law 37th editionby Linda Crawford.Chapter 2.pg38.

Does this down payment go towards the principle?