Arnie credits his strict upbringing on his success

The former governor of California says he decided to see the "positive" sides of his difficult childhood and it's what "made him".

He wrote: "If my childhood was just a little bit better, you might not be holding this book right now. And if it was a little bit worse, you might not be holding it either, because I could have fallen down the same rabbit hole of alcoholism that my brother fell down, which eventually cost him his life in a drunk-driving accident in 1971. I owe a lot to my upbringing. I was made for it and made by it. "