A look back at some of her most celebrated works, including “Doctor Zhivago,” “The Princess Bride” and “Lawrence of Arabia.”

Dr. Fenwick, a neuropsychiatrist, assembled anecdotes from more than 300 people in his book “The Truth in the Light.” Here are some of them.

As a researcher at several universities and an adviser at NASA, he used data analysis to show how the planet’s different systems are interrelated.