任何农场最好的肥料是农民的足迹。
The best fertilizer for any farm is the footsteps of the farmer.
A poet can survive everything but a misprint.
每一种化合物都必须有确定的组成,这可以用其元素的符号来表示。
生命短暂,但永远有时间保持礼貌。
"The weight of history is always present in the materials we use."