人是存在的牧者。

作家必须忠于自己的真相，即使它不是别人的真相。

Sustainability isn't just a trend; it's our responsibility to the future.

Innovation in the energy sector is not optional; it's imperative.

The greatest proof of our intellect is our ability to perceive our own limitations.

柠檬问题是指买家无法确定产品质量，因此只愿意支付反映平均质量的价格。