Yes I understand that but my point is that 'the holy grail' a common term used in regard to trading and trading systems. It's not just simply a term 'coined' and used by Paul alone! Traders look for the 'holy grail' or the perfect trading system all the time.
The secret to profitable investing is to buy into well-run companies at the beginning of their earnings growth cycle—before Wall Street takes notice and bids up the stock price. My opinions are my own. You have to decide and do what's best for you.