普通的草木到了秋天就凋零了，只有松柏在秋天，仍郁郁葱葱。点评：南北朝时期刘宋学者刘义庆曾言「蒲柳之姿，望秋而落；松柏之质，凌霜犹茂。」松柏两树皆长青不凋，是志操坚贞的象征。
I have always considered that the true test of a machine is its practical utility in the hands of the common laborer.
农业的真正进步意味着让土地比我们发现时更好。
如果你一直在学习，你就会拥有巨大的优势。
It’s OK to have your eggs in one basket as long as you control what happens to that basket.