布莱克-斯科尔斯公式的美妙之处在于它仅依赖于一个不可观测的参数，即股票的波动率。

The beauty of cinema lies in its ability to evoke emotions.

The unexamined life is not worth living.

每个故事都是一颗种子。种下它，看着它成长。

Innovation without practicality is just noise—farmers need real solutions.

The highest form of theory is the ability to simplify complex things into simple and clear principles.

我们需要创造性地思考如何解决世界上最大的问题。