The alternation of motion is ever proportional to the motive force impressed； and is made in the direction of the right line in which that force is impressed.
物体的加速度与所受的合外力成正比，与物体的质量成反比。加速度的方向与合力的方向相同。
用音乐传递爱，用爱感动世界。
过去是一个异国他乡；他们在那里做不同的事情。
The dunes are changed by the wind, but the desert never changes. That's the way it will be with our love for each other.
人生最大的幸福是确信我们被人爱着；因为自己而被爱，或者更确切地说，尽管自己而被爱。
