The arithmetic of modular forms is a window into the hidden structures of the universe.

"A novel is a conversation between the writer and the reader, across time and space."

积极情绪不是微不足道的奢侈品，而是最佳功能的关键必需品。

奥林匹克旗帜以白色为底，中央有五个交织的环：蓝、黄、黑、绿和红色。这个设计是象征性的；它代表着世界五大洲，因奥林匹克精神而团结在一起。