学习数学的唯一方法就是做数学。
Sometimes when you innovate, you make mistakes. It is best to admit them quickly, and get on with improving your other innovations.
一切能被说出的都能够清楚地被说出,而我们不能谈论的,必须保持沉默。
"La vida es una serie de momentos que se convierten en recuerdos."