In a world that is constantly changing there is no one subject or set of subjects that will serve you for the foreseeable future let alone for the rest of your life. The most important skill to acquire now is learning how to learn.
If you're lucky enough to be involved in a film that's about something very real and that you hope will continue to hold up in 20 years' time it just gives you more energy and makes it feel all the more worthwhile.
