1) 5 Day Weekend or Rich Dad Poor Dad
2) Lincoln on Leadership
3) Watching baseball (Go M'S!), taking my dog on long walks, and writing ebooks.
4) Two fold. First is that people who fail, quit, or never get started is that they see real estate investing as an ends, rather than the means of financial freedom. By that, I mean that those people ignore the singles, and only try go for the homerun deals.
Most "investors" I meet at local meet ups have never gotten started because they are waiting for that perfect property to appear where it is turn-key, under market value, and will produce $200 p/door and at least 15% COC ROI and they do not need to do anything and can just lay on the beach and collect monthly checks.
The thing to me is that you need to hit consecutive singles and grind your teeth in order to get that home run ball. In other words, buy properties, work your butt off, and be able to make sacrifices while living frugally so you can actually get started in real estate.
My first property broke even for the first couple months, but guess what, I loved every second of it because I learned SO much about real estate that books/seminars etc would have never taught me. Not only that, but that 'single' led me to my next deal. And that second property that broke even as well, allowed me to now close on my third property here in the following deals.
I LOVE REAL ESTATE. I am not going to be a millionaire because of real estate. But real estate will allow me to have the financial freedom to where I can focus on myself and become a millionaire by focusing on other means. That is the disconnect that most 'investors' do not understand. Brandon Turner, Josh Dworkin, and gang did not become successful because of real estate, they became successful because real estate allowed them have the financial freedom to focus on themselves and their businesses.