Peter Lynch is definitely someone you should be studying if you want to learn about investing and the stock market . During his time running the Fidelity Magellan Fund, Lynch averaged a 29.2% annual return, consistently more than double the S&P 500 stock market index and making it the best-performing mutual fund in the world. Here is my 9 favorite pieces of advice from Peter Lynch. Number 5 is my personal favorite. Enjoy!