成功交易的关键是知道何时买入和何时卖出。
The key to successful trading is to know when to buy and when to sell.
Don't be afraid of failure, failure is the mother of success.
The question of truth and falsehood is always present, but it is not always answerable.
Success is my only motherfuckin' option, failure's not.
The quality of an organization is determined by the quality of its systems.