Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
The psychologist must study the mind without presuppositions.
农民是最早的环保主义者;我们必须支持他们发挥这一关键作用。
Fruit is a noble cause,the cause of flower is sweet,but still let me in the obscurity of the shadow of the dedication to do it cause leaf.