子在川上曰:“逝者如斯夫!不舍昼夜。”
孔子在河边说:“时光如流水!日夜不停留。”
可持续性不是一种选择,而是农业前进的唯一道路。
The beauty of mathematics is that it is both precise and creative.
The greatest works are those that are still being read long after their authors have died.
每一次挫折都是为了东山再起。