Buffet said that he was interested in investments because of reading The Intelligent Investor by Benjamin Graham.
That's what he says:
To invest successfully over a lifetime does not require a stratospheric IQ, unusual business insights, or inside information. Whats needed is a sound intellectual framework for making decisions and the ability to keep emotions from corroding that framework. This book precisely and clearly prescribes the proper framework. You must supply the emotional discipline.
Yes, Warren never chased his dreams based on the emotions or made his decisions like that. He always made the goals with perfect plans, then he used to execute it. This is the simplest way of getting success in any investment you make always. Also, he never stopped investing the money in single business and he always kept trying different ways all the time and thats why he got more successful. I guess if we also follow the same thing then we can be successful too. The patience, different or multiple ways of investing and also keeping your emotions away would make things better for us.