Howard Stark: Tony? You're too young to understand this right now, so I thought I would put it on film for you. I built this for you. And someday you'll realise that it represents a whole lot more than just people's inventions. It represents my life's work. This is the key to the future. I'm limited by the technology of my time, but one day you'll figure this out. And when you do, you will change the world. What is and always will be my greatest creation is you.