把这一句，留给此刻的你

I think business is very simple. Profit. Loss. Take the sales, subtract the costs, you get this big positive number. The math is quite straightforward.

我认为做生意很简单。利润。的损失。把销售额减去成本，就得到一个很大的正数。数学很简单。

— Bill Gates 比尔·盖茨