When we invest in sustainable farming, we're investing in the health of our planet and its people.

The principle goal of education in the schools should be creating men and women who are capable of doing new things, not simply repeating what other generations have done.

The most important thing is to keep thinking, keep questioning.

好奇心推动数学家前进，总是在寻找下一个要回答的问题。

The sustainable development of the coal industry requires the coordinated efforts of policy, technology, and the market.