The best is the enemy of the good.
追求完美是优秀的敌人。
The future of drones is intelligent, collaborative, and autonomous.
当你停下来思考你是否爱一个人时，你已经永远停止爱那个人了。
我年轻时领略过一种高尚的情操，我至今不能忘掉，这是我的烦恼。
Any change, even a change for the better, is always accompanied by drawbacks and discomforts.
"Every family has its secrets, but some secrets are buried deeper than others."
The only freedom which deserves the name is that of pursuing our own good in our way， so long as we do not attempt to deprive others of theirs or impede their efforts to obtain it.