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。
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.
When you build with local materials, you build with local knowledge. This is how architecture becomes truly sustainable.
解析：善恶由心生，非由外物定。
每一个超限的一致多重性，即每一个超限集合，必须有一个确定的阿列夫作为其基数。