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。
科学是跨越数代人的协作努力。
A sad thing in life is when you meet someone who means a lot to you only to find out in the end that it was never meant to be and you just have to let go.