未说出口的往往最有力量。
过度捕捞是对子孙后代的盗窃。
今天种下的每一棵树,都是对明天的承诺。
It is the duty of a student to get everything out of a teacher, and the duty of a teacher to get everything out of a student.
最好的想法往往来自房间里最安静的声音。
"Literature is the mirror of society, reflecting its beauty and its ugliness, its hopes and its fears."
科学中最重要的不是技术,而是你提出的问题。