Coming into Salem now, Reverend Hale conceives of himself much as a young doctor on his first call. His painfully acquired armory of symptoms, catchwords, and diagnostic procedures is now to be put to use at last.

– Arthur Miller

The Crucible, Act 1. This description describes the arrival of witchcraft expert Reverend John Hale. He has been called in by Parris to investigate the mysterious illness of a number of local childen. In a simile, Hale is likened to a young doctor on his first call.