A man is a success if he gets up in the morning and gets to bed at night, and in between he does what he wants to do.
Every mathematical problem is a puzzle waiting to be solved, and every solution is a step towards greater understanding.
I think the only way to conquer fear is to tell it to go to hell.
La literatura es el espejo de la sociedad, pero también su crítica.
【讲解】:聪明智慧的人爱水,有仁德的人爱山。聪明智慧的人爱活跃,有仁德的人爱沉静。聪明智慧的人快乐,有仁德的人长寿。