If at first you do succeed, quit trying on investing.
If I subscribed to the efficient market theory I would still be delivering papers
People do, as long as you have markets, you'll have excesses.
The 19th century belonged to England, the 20th century belonged to the U.S., and the 21st century belongs to China. Invest accordingly.
Do not put all your eggs in one basket.
In the world of business, the people who are most successful are those who are doing what they love.