经济学的任务不仅在于解释现象，更在于为社会提供实际的建议和政策。

"In every book, there is a part of the author's soul."

Today is cruel, tomorrow is crueler, and the day after tomorrow is beautiful, but most people will die tomorrow night, so don't give up today.

We must focus on customers and continuously improve the quality of products and services.

CRISPR的潜力只受限于我们的想象力和伦理。