" Mass is not proportional to volume.
A girl as small as a violet. A girl who moves like a flower petal is pulling me toward her with more force than her mass.
Just then, like Newton’s apple, I rolled toward her without stopping until I fell on her, with a thump. With a thump.
My heart keeps bouncing between the sky and the ground.
It was my first love. "

― , Physics of Love 사랑의 물리학