The heart of a mother is a deep abyss at the bottom of which you will always find forgiveness.
每个词都是一个选择,而每个选择都带有后果。
The highest manifestation of life consists in this: that a being governs its own actions. A thing which is always subject to the direction of another is somewhat of a dead thing.
如果物体处于静止状态或作匀速直线运动,只要没有外力作用,物体将保持静止状态或匀速直线运动状态。