(Image source from: Angelina Jolie gushes about ex-husband Billy Bob thornton in new book})

Jolie will never forget how clever her eccentric ex-husband is: "To be with him is like being with a mad mathematician. He is constantly counting and repeating."

The actress concludes with a touching tribute to Thornton, adding, "Some people walk through life able to quiet the voices in their heads. He can't. And I, and everyone else who knows him well, we love him for it. I know one thing: The world would certainly be a hell of a lot more dull if that man weren't in it."