The title is quoted from Gekko in Wall Street(1987). Here the “sure things” is the most valuable commodity–that is information. Bud and Gekko were punished by the justice and law finally because they violated the business ethics which is collecting inside information and stock manipulation.
Around us, there are many real example of the Wall Street. Jianzhong Wang is actually one of them in China. Jianzhong is a stock market black mouth in fact. First, he bought many stock with low price. Next, he used his investment company’s name to publish a lot of stock analysis on Chinese Stock Newspaper to recommend readers to buy the stock that he bought before. Then when the price of the stock goes up remarkably due to tremendous volume of trade, he sold his stock out, which helped him make money but made followers tie up. http://anm.newsbrief.eu/ANM/moreclusteredition/zh/peoplecom-6103e1afc1d7d7d77cb8e4fc8f142cf5.html
Another case happened on Sokol who is the hottest successor for Buffett. He took the advantages of inside information, that BHC would purchase Lubrizol, to make 3 million money. He violated business ethics by using inside information.
http://online.wsj.com/article/SB10001424052748704167404576295031517957882.html
Information is like a sweety pie. You will feel happy if you eat some but you will get diabetes if you eat much.