I am always glad to think that my education was, for the most part, informal, and had its roots in the soil.

The work of art is the result of a struggle between the artist and his material.

市场比政府更有效地分配资源，但它并非完美的分配者。

我不害怕做我自己。

What we do today will determine the climate for centuries to come.

学习不仅仅是存储信息的问题；它是一个通过改变支配行为的规则来适应环境的过程。

在数学中，旅程和目的地同样重要。