译文：年轻人不要去嘲笑老人，你看花儿能红透到什么时候。赏析：每个人都会经历人生的起起落落，每个人都会衰老死去，不要因为自己一时的得势就去嘲笑别人，不能因为自己获得一时的成功就骄傲自大。

You are not defined by your past.

The most advanced technology is worthless if farmers can't use it effectively.

"Silence is the perfectest herald of joy: I were but little happy, if I could say how much."

无论我们观察到多少只白天鹅，都不能证明所有天鹅都是白色的。