数学的本质不是使简单的事物复杂化,而是使复杂的事物简单化。
He who plants a tree plants a hope.
I'm not a superstar, I'm just a man who sings for the stars.
I'm not a pop star, I'm a rock star.
It is not because certain things are difficult that we do not dare;it is because we do not dare that things are difficult.