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.
写作是探索生命奥秘的一种方式。
Technology alone won't solve hunger; it must be paired with equitable access and education.
不算过错，有多少人为此蒙蔽良心；无可奈何，有多少体面以此为借口。
"When you have a dream, you've got to grab it and never let go."