最大的风险就是不冒任何风险。

In theory, there is no difference between theory and practice. But, in practice, there is.

The art of teaching is the art of assisting discovery.

农业中最宝贵的资源不是土地或水，而是知识。

I’m a human being and I fall in love and sometimes I don’t have control of every situation.

Philosophy is not a doctrine but an activity.

Technology in forestry should serve nature, not conquer it.

元素周期表不仅是一张图表，它是宇宙的故事。