一幅画需要一点神秘，一些模糊和一些幻想。
A painting requires a little mystery, some vagueness, and some fantasy.
I don't regret the past. It made me who I am today.
The interplay between local and global phenomena is a recurring theme in number theory.
Stories you read when you're the right age never quite leave you. You may forget who wrote them or what the story was called. Sometimes you'll forget precisely what happened, but if a story touches you it will stay with you, haunting the places in your mind that you rarely ever visit.
全球性挑战需要具有全球视角的本地解决方案。