## Metadata - Author: [[Matt Strassler]] - Full Title: Waves in an Impossible Sea - Category: #books ## Highlights - The property called mass is a form of tenaciousness, of stubbornness, in the face of change. Specifically, an object’s mass is an intransigence that hinders any attempt to alter the object’s motion—to cause the object to speed up, slow down, or change direction. ([Location 868](https://readwise.io/to_kindle?action=open&asin=B0C9ZPQJ64&location=868))