Happiness is a Serious Problem Author:Dennis Prager A Human Nature Repair Manual. "The fact that human nature is the greatest single obstacle to happiness is too rarely pointed out. It strikes many people as being too pessimistic; and citing our own nature as the greatest obstacle to happiness, which means that in order to be happy we first have to battle ourselves, is not something people want... more » to hear. It undermines the tendency to attribute one's happiness to outside forces. That is why this book directs so much attention to the most important battle we must wage--with ourselves."« less