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。
Marine biodiversity is the foundation of our industry's future—we must protect it at all costs.
最好的艺术来自脆弱。
Our capacity to draw happiness from aesthetic objects or material goods in fact seems critically dependent on our first satisfying a more important range of emotional or psychological needs, among them the need for understanding, for love, expression and respect.
The only thing that is truly valuable is the time you spend with people you love.
What we have to do is find a way to celebrate our diversity and debate our differences without fracturing our communities.
The beauty of physics lies in its ability to reveal the profound simplicity underlying the apparent complexity of the universe.