因果关系是宇宙的结构，概率是其语言。

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。

What good's an opinion if you can't change it?

A good abstraction is one that emphasizes the essential and suppresses the irrelevant.

"We are all in the gutter, but some of us are looking at the stars."