艺术中没有必须，因为艺术是自由的。

图书馆是一个过去、现在和未来相遇的地方。

Every piece of plastic we don't recycle is a failure of our system and our responsibility.

"The greatest challenge is to paint what cannot be painted."

科学不是一场竞赛；而是一场耐心与精确的旅程。