You have to write the book that wants to be written. And if the book will be too difficult for grown-ups, then you write it for children.
数学家是将咖啡转化为定理的装置。
The study of Shimura varieties is a meeting point of geometry, algebra, and number theory.
觉醒的人唯一的责任,是找到自我,成为自我,自己摸索前行的路。
Next time, leave a little earlier. Your son is pleading for you