一个社会的真正考验在于它如何对待最脆弱的成员。

If you're trying to create a company, it's like baking a cake. You have to have all the ingredients in the right proportion.

未经审视的生活不值得活。

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。