Some people don't even know what a dividend is, they just think of stock as something whose price goes up.

有些人甚至都不知道股利是什么,他们仅仅把股票想象为一种会升值的玩意

耶鲁公开课 - 金融市场课程节选

If you know the secrets of a company, if you know some good news about the company before the public does, you could buy the shares of the company and experience the profit when the price goes up.

如果你掌握了公司内幕信息,你能比公众更早得知,公司的利好消息,那你就会去购买公司的股票,然后从股票升值中获利

耶鲁公开课 - 金融市场课程节选

That's $1 more than it costs now in the market, so the options are worthless unless the price of the stock goes up.

这样每股就要比市场价多花费一美元,除非股票价格增长了,否则这个期权就是没有价值的

耶鲁公开课 - 金融市场课程节选