There are bullfighters who do it just for the money-they are worthless [said Hemingway]. The only one who matters is the bullfighter who feels it, so that if he did it for nothing, he would do it just as well. Same holds true for damn near everyone.
Hope for the best, be prepared for the worse. Life is shocking, but you must never appear to be shocked. For no matter how bad it is it could be worse and no matter how good it is it could be better.