柠檬问题发生的原因是卖家比买家更了解产品，从而导致市场失灵。

No man or woman is worth your tears， and the one who is， won‘t make you cry。

Sustainability isn't a cost center; it's the ultimate driver of long-term profitability.

真相并不总是美丽的，美丽的话语也不一定是真相。