Factoring large numbers is believed to be hard for classical computers, but quantum computers can do it efficiently.
人情像纸一样十分脆薄,世界上的事如棋局一样变化万千。
There is no such thing as a quality problem. There are only problems, and the solutions to those problems may involve quality considerations.
Mathematics is the art of giving the same name to different things.
研究历史的人,贵在能够贯通古今的变化,探究天道与人事的关系。