The woodcutter's axe begged for its handle from tree,the tree gave it.

The best solutions often come from listening to those who work on the water every day.

I believe that love is a better teacher than the sense of duty， he said， at least for me.

机器学习中最重要的挑战之一是开发能够从少量数据中学习的算法。

成功经济发展的关键在于让市场成为资源配置的基本机制，同时让政府在解决市场失灵方面发挥积极作用。