THEO WOLF

An object in motion will stay in motion unless something pushes or pulls on it. 

This statement is called Newton's first law of motion. 

Without gravity, an Earth-orbiting satellite would go off into space along a straight line.

Newton’s First Law applied to habit formation: Objects in motion tend to stay in motion. 

Once a task has begun, it is easier to continue moving it forward. In other words, it is often easier to finish a task than it was to start it in the first place.