The key to successful trading is to know when to buy and when to sell.

市场组合是所有投资者都应该持有的唯一组合。

The most dangerous thought you can have as a creative person is to think you know what you're doing.

出自汉·桓宽《盐铁论·复古》。岩雀并不知道天的高远，废井中的青蛙也不会知道江海的博大。这句话是形容心胸狭窄之人见识短浅。