My philosophy all my life has been the pursuit of excellence.
Money is not a fund of knowledge.
I wouldn't write a book, because saying the word I over and over again would nauseate me.
You should have a fund of knowledge of something and out of that you make up you mind.
Go into something because you really like it, and then do it with a drive and enthusiasm so that it isn't work.
The last thing you want to do, unless it's a very unusual situation, is to invest money.