I am not ignorant how doctors (quite unlike the followers of Aristotle) tend to become agitated when it comes to their attention nowadays in the course of a single anatomical demonstration that Galen has departed much more than two hundred times from a true description of the harmony, use, and function of the human parts, and they grimly puzzle over the dissected pieces with the utmost determination to defend him.

Andreas Vesalius, De Humani Corporis Fabrica, Dedication

Scene One: Leiden

Scene Two: Four Months Later

Scene Three: The Vivisectionist

Scene Four: Confrontation